Magnesium Essays & Research Papers

Best Magnesium Essays

  • magnesium - 457 Words
    Magnesium, an abundant mineral in the body, is naturally present in many foods, added to other food products, available as a dietary supplement, and present in some medicines (such as antacids and laxatives). Magnesium is a cofactor in more than 300 enzyme systems that regulate diverse biochemical reactions in the body, including protein synthesis, muscle and nerve function, blood glucose control, and blood pressure regulation [1-3]. Magnesium is required for energy production, oxidative...
    457 Words | 2 Pages
  • Magnesium to Magnesium Oxide - 936 Words
    31 Introduction- Magnesium is a silvery-white alkaline metal found represent by the atomic number of 12. This experiment involves combining Magnesium with Oxygen which is a gas represented by the chemical element 8. The word equation for the result of this experiment is Magnesium + Oxygen= Magnesium Oxide. The equation is Mg + O =MgO Definitions Word Definitions Mass Number The Mass number is the amount of Protons and Neutrons in the Nucleus. Atomic Number The amount of protons...
    936 Words | 5 Pages
  • Magnesium and Its Properties - 387 Words
    Magnesium Mg(Z=12) in Group 2 Alkaline Earth Metals The structure of the element: Giant lattice metallic structure of immobile positive metal ions surrounded by a 'sea' of freely moving mobile electrons (so-called delocalised electrons). Physical properties: A moderately hard silvery-white solid; mpt 649oC; bpt 1090oC; good conductor of heat/electricity. Group, electron configuration (and oxidation states): Gp2 Alkaline Earth Metal; e.c. 2,8,2 or 1s2 2s2 2p6 3s2; (+2 only) e.g....
    387 Words | 2 Pages
  • Magnesium Lab - 769 Words
    Determination of an Empirical Formula Dylan Klimas 4/4/2013 Period 7 Magnesium lab Purpose: To determine the empirical formula of an oxide of magnesium Materials: * Crucible * Crucible Cover * Crucible tongs * Triangle pipe stem * Ceramic Plate * Ring stand * Steel wool * Iron ring * Bunsen burner * Flint igniter * Electronic balance * 25cm length of Magnesium ribbon Procedure: Safely and securely setup your ring stand, ring, and...
    769 Words | 3 Pages
  • All Magnesium Essays

  • Magnesium Strip - 335 Words
    Chemistry Internal Assessment 8 Lee Dong Hun (16) 5.12 Proverbs Table 1 : Mass of Magnesium Strip Mass of Magnesium Strip and Weighing bottle /g (± 0.001g) | 3.585 | Mass of Weighing bottle /g (± 0.001g) | 3.460 | Mass of Magnesium Strip /g (± 0.002g) | 0.125 | Table 2 : Mass of Crucible and lid Mass of Crucible /g (± 0.001g) | 15.147 | Mass of Lid /g (± 0.001g) | 9.670 | Table 3 : Mass of Magnesium Oxide Mass of Magnesium Oxide and Crucible and Lid /g (± 0.001g) | 24.985 |...
    335 Words | 2 Pages
  • Electrolytes: Magnesium - 4128 Words
    Electrolyte is a scientific term for salts, specifically ions. The term electrolyte means that this ion is electrically-charged and moves to either a negative or positive electrode. Ions that move to the negative which are called cations are positively charged and Ions that move to the positive which are called anions are negatively charged. They can be divided into acids, bases, and salts, because they all give ions when dissolved in water. Electrolytes are present in the human body, and the...
    4,128 Words | 11 Pages
  • Magnesium citrate - 537 Words
    Magnesium Oxide: Origin, Production and Utilization Magnesium oxide is a basic or alkaline kind of earth metal that naturally originates from seawater. The compound is odorless and colorless that makes it difficult to see by the naked eye. To produce such compound, extraction from the seawater by electrolysis and several chemical processes id done. The compound is formed from the thermal processes which make uses of air and oxygen. Magnesium hydroxide is also produced. The versatility of uses...
    537 Words | 2 Pages
  • Magnesium Oxide - 631 Words
    Aim: to perform a firsthand investigation to compare the physical and chemical properties of magnesium and oxygen when they are experimented to form magnesium oxide Theory: The empirical formula of a compound is the formula that tells us the ratio in which the atoms are present in the compound. To calculate an empirical formula: - Write down the masses of all of the elements present - Convert masses to moles (by dividing by atomic weights in grams) - Divide through by the smallest number...
    631 Words | 2 Pages
  • Finding the Formula of Magnesium Oxide
    Finding the formula of magnesium oxide Aims When magnesium is heated in air, it reacts with oxygen. During this oxidation reaction, magnesium oxide is produced. This increases the mass. If we know the mass of magnesium at the start, and the mass of magnesium oxide produced at the end, we can work out the mass of oxygen which has been combined with the magnesium. We can use these masses to work out the formula of magnesium oxide. Eye protection must be worn Apparatus Crucible and...
    415 Words | 3 Pages
  • Carbon Dioxide and Magnesium Atom
    Chemistry NYA/701 practise questions test 1 autumn 2012 Audrey Goldner-Sauvé #1 Assuming a magnesium atom is spherical, calculate its volume in nm3. The diameter of a magnesium atom is 3.20 Å . The volume of a sphere is V = (4/3) r3. 1 Å = 1 x 10–10 m and 1 nm = 1 x 10–9 m and  = 3.14 #2 What is the maximum amount of carbon dioxide that can be produced by the combustion of 0.450g of C2H5OH? #3 What mass of FeCl3 would contain the same total number of ions as 16.8 g...
    357 Words | 2 Pages
  • Topical Reasearch Essay- Magnesium
    Shelby Hood Ralph Morasch Chemistry 100 Topical Research Paper Magnesium –Mg Magnesium is the eighth-most-abundant element in the Earth's crust and ninth in the known universe as a whole. Magnesium is the third-most-commonly-used structural metal, following iron and aluminum. It has been called the lightest useful metal by The Periodic Table of Videos. China is the dominant supplier of magnesium, with approximately 80% of the world market share. In the United States, magnesium is obtained...
    795 Words | 3 Pages
  • Details About Magnesium (Mg)
    Name: Magnesium Name derived from: Magnesia deriving from the tribe name Magnetes Group No.: 2 Period No.: 3 Electron Configuration: [Ne] 3s2 Symbol: Mg Atomic Mass: 24.305 Group Name: Alkaline earth metal Block: S Description: Magnesium is a chemical element with symbol Mg and atomic number 12. Its common oxidation number is +2. It is an alkaline earth metal and the eighth most abundant element in the Earth's crust and ninth in the known universe as a whole. Magnesium is the fourth...
    1,200 Words | 4 Pages
  • Investigation for Magnesium Oxide - 2008 Words
    Hypothesis - The idea I aim to test in this experiment is the relationship between the mass of magnesium and mass of oxygen once the magnesium has been heated and reacted with the oxygen. There will be 3 variables in this experiment. The independent variable will be the mass of magnesium ribbon as different measurements will be taken and used for each trial. The dependant variable will be the mass of Magnesium Oxide, this is a measured variable as the mass of oxygen can be calculated and will...
    2,008 Words | 5 Pages
  • Magnesium Deficiency in Ruminants - 2189 Words
    Magnesium Deficiency in Cattle Introduction Grass Tetany is a common magnesium deficiency disorder in cattle that is caused by a variety of factors such as fertiliser use, soil properties, breed, age, climatic effects and management strategies. The following essay aims to outline the causes of magnesium deficiency as was as point out a number of treatment options and prevention methods available to the producer as well as ways for predicting magnesium deficiency. Improving control of this...
    2,189 Words | 7 Pages
  • Determination Of The Valency Of Magnesium - 904 Words
    Objectives To study the quantitative relationship between the amount of reactants and products of a reaction ( that is how many moles of A react with a given mol of B). A known starting mass of magnesium and the measured collection of hydrogen gas will be used to determine the reaction stoichiometry and the valency of magnesium Introduction Stoichiometry is the study of the quantitative relationship between amounts of reactants and products of a reaction. Stoichiometry can be used to calculate...
    904 Words | 4 Pages
  • Magnesium Oxide Lab Report
     Chemistry SL Magnesium Oxide Lab Report Rashpreet Singh Date Performed: November 6, 2014 Research Question: To determine the empirical formula of the compound which forms between magnesium and oxygen. Design: The following figure represents the experiments lab setup, visualize the equipment used. Materials: Done 1. Ceramic evaporating dish 2. Electronic balance 3. Bunsen burner 4. Retort stand, ring clamp, clay triangle 5. Sand Paper 6. Tongs 7. Magnesium Ribbon Safety: Done 1....
    856 Words | 4 Pages
  • Percent Composition Of Magnesium Oxide
     Percentage Composition of Magnesium Oxide Aleshia Otieno Mr. Taylor SCH3U-01 Lab #4 Monday, November 17, 2014 Introduction Percentage composition is the percentage of a formula mass represented by each element. Percentage composition compares the mass of one part of a substance to the mass of the whole. The law of definite proportions states that a specific compound always contains the same amount of elements in fixed proportions by mass. By finding the percent...
    1,042 Words | 5 Pages
  • Magnesium Oxide Formula - 610 Words
    Working out the Formula of Magnesium oxide Aims When magnesium is heated in air, it reacts with oxygen. During this oxidation reaction, magnesium oxide is produced. This increases the mass. If we know the mass of magnesium at the start, and the mass of magnesium oxide produced at the end, we can work out the mass of oxygen which has been combined with the magnesium. We can use these masses to work out the formula of magnesium oxide. Apparatus Googles...
    610 Words | 3 Pages
  • Magnesium Metal Production Line
    Dolomite Calcination system for magnesium we are the leading company of magnesium production lines both at home and abroad,in the year 2011,we have signed an annual output of 100000 tons of magnesium metal project with the world iron and steel giant Korean Pohang iron POSCO company. Magnesium Calcination Process The company's magnesium production line is very famous, at present,many famous enterprises at home and abroad have chosen to cooperate with our company. step1: Calcined--The...
    332 Words | 2 Pages
  • Empirical Formula of Magnesium Oxide
    Empirical Formula of Magnesium Oxide Date: Aim: The aim of this experiment was to determine the empirical formula of magnesium oxide. Equipment: · Balance · Crucible and lid · Bunsen burner · Magnesium ribbon (0.2g) · Steel wool · Crucible tongs · Pipe clay triangle · Tripod Procedure: 1. Obtain a clean, dry crucible and lid, then heat them for approximately 5 minutes over a Bunsen burner 2. Clean the surface of a 20 cm strip of magnesium ribbon using steel wool 3....
    621 Words | 3 Pages
  • Combustion of Magnesium Oxide - 625 Words
     COMBUSTION OF MAGNESIUM OXIDE DESIGN Aim/Purpose: To calculate the number of moles and the empirical formula of magnesium oxide. Safety precautions: 1) Wear lab coat 2) Wear gogles. 3)Make sure the bunsen burner is working properly and their is no leakage. 4) Wear gloves. Hypothesis: The weight of the magnesium ribbon increases after burning, so this indicated that their was a change in mass. This change happened because of the magnesium ribbon inside the...
    625 Words | 3 Pages
  • Empirical Formula of Magnesium Oxide
    DETERMINATION OF EMPIRICAL FORMULA OF MAGNESIUM OXIDE Objective: The objective of this lab is to experimentally determine the empirical formula of Magnesium Oxide. Equipment: • Ring Stand • 5 inch ring • wire gauze • Crucible and Crucible lid • Butane burner • Magnesium • Crucible tongs • Safety glasses • Gloves Experimental Procedure 1. Setup ring stand with five inch ring and triangle. 2. Obtain desired amount of Magnesium, a crucible...
    437 Words | 3 Pages
  • Burning Magnesium Lab - 1033 Words
    Determining the Empirical Formula of a Compound: Burning Magnesium Lab Purpose: To experimentally determine the percent composition of a reaction product. Directions: Work in teams of three. The directions for this lab are on a separate sheet of paper at your lab bench. Make sure that everyone in your group understands the process and purpose before you get started. Assign tasks. Everyone in the group will be expected to contribute at the same level of participation, and for this...
    1,033 Words | 4 Pages
  • OXIDATION-REDUCTION REACTION OF MAGNESIUM
    INTRODUCTION For this experiment we studied an oxidation-reduction reaction of magnesium and hydrochloric acid solution. We compared the experimental measured amount of a product and the amount predicted by the theoretical calculation of a balanced equation: Mg (s) + 2HCl (aq) → MgCl2 (aq) + H2 (g) PROCEDURE First we obtained a strip of pre-cut magnesium ribbon, cleaned it with steel wool to remove any signs of oxidation from the strip (which would alter our results), and then weighed it...
    880 Words | 3 Pages
  • preperation of magnesium sutfate - 1106 Words
    EXPERIMENT 4 Title: Preparation of magnesium sulphate. Date:11.02.2010 Aim: To prepare magnesium sulphate Theory: Magnesium sulfate (or magnesium sulphate) is a chemical compound containing magnesium, sulfur and oxygen, with the formula MgSO4. In its hydrated form the pH is 6.0 (5.5 to 6.5). It is often encountered as the heptahydrate, MgSO4·7H2O, commonly called Epsom salt. Anhydrous magnesium sulfate is used as a drying agent. Since the anhydrous form is hygroscopic (readily absorbs...
    1,106 Words | 4 Pages
  • Ib Chemistry Ia - Oxidizing Magnesium
    Oxidizing Magnesium AIM: To determine the empirical formula of MgO RAW DATA COLLECTED: Mass of Mg/g | Mass of O2/g | Mass of MgO/g | 0.12 | 0.07 | 0.19 | 0.15 | 0.08 | 0.23 | 0.16 | 0.08 | 0.24 | 0.19 | 0.11 | 0.30 | 0.21 | 0.11 | 0.32 | 0.23 | 0.09 | 0.32 | CONCLUSION: When a mass of magnesium is burnt in air, it combines with the oxygen molecules to form magnesium oxide. The graph doesn’t completely verify the empirical formula of magnesium oxide. There is a slight...
    475 Words | 2 Pages
  • Room Temperature Magnesium - 570 Words
    Magnesium (Mg) has an atomic number of 12 and an atomic mass of 24. It has 12 protons, 12 neutrons (varies with isotopes), and 12 electrons (if it has no charge). Magnesium has a boiling point of 1363 K (1091 C/1944 F) and a melting point of 923 K (650 C/1202 F). At room temperature magnesium is solid. You can buy magnesium for $0.83 per lb. Magnesium is a metal and belongs to the alkaline-earth metal family. Magnesium was named after the city of Magnesia; it was discovered by Bussy in 1828...
    570 Words | 2 Pages
  • Selective Precipitation of the Barium Magnesium Group
    Selective precipitation of the Barium Magnesium Group Chem 112-004 Abstract The purpose of this experiment is to separate and identify the cations of Ba+,Sr2+,Ca2+, Mg2+ and NH4+ using differences in solubility and confirming test to identify the unknown solution used in this experiment. In this experiment the methodology used by the group is to perform the tests for both the unknown and the cations (Ba+,Sr2+,Ca2+, Mg2+ and NH4+) using the known as a control for comparison and...
    4,019 Words | 11 Pages
  • Magnesium Oxide Experiment Lab Report
    Objective: One objective was to figure out if the burnt Mg ashes weigh more than the product which is Magnesium Metal. Another objective was determining the formula of the compound that results when Magnesium and Oxygen react. Theory: The purpose of this lab was to confirm the chemical formula of magnesium oxide by comparing the masses of pure magnesium solid prior to any reaction and magnesium oxide solid after a reaction between all of the magnesium and oxygen from the air when heated from...
    339 Words | 2 Pages
  • Determining the Empirical Formula of Magnesium Oxide
    Chemistry Practical Report: Topic: Determining the Empirical Formula of Magnesium Oxide Patrick Doan 11 CHEM 11 26/9/08 Table of contents 1.0 Aim 1 2.0 Theory 2-3 3.0 Materials 4 4.0 Method 4 5.0 Results 4 - 5.1 Qualitative Observations 4 - 5.2 Example Calculations for each Calculated Value 5-7 -5.21 Experimental Values and Associated Errors 5-7 - 5.3 Accumulated Raw Data 8 - 5.4 Mean...
    1,976 Words | 10 Pages
  • 11.3 Hess's Law on Combustion of Magnesium
    Design Objective: Find the standard molar enthalpy of combustion for magnesium. Manipulated Variables- volume of HCl, length of magnesium strip, mass of magnesium oxide, Controlled Variable- type of calorimeter (Styrofoam cup) Responding Variable- change in temperature Procedure: 1. Cut out 3 pieces of magnesium strips each with lengths of maximum 5 centimeters. 2. Measure and record the lengths of the magnesium. 3. Scrub the magnesium strips with steel wool to clean out...
    2,480 Words | 10 Pages
  • Percentage Composition by Mass of Magnesium Oxide
    Percentage composition by mass of magnesium oxide – Report Objective: To measure and calculate the ratio of magnesium to oxygen in magnesium oxide. To compare the lab ratio to the percent composition calculation based on the formula. Hypothesis: Based on the law of definite proportions, the percentage composition of magnesium oxide should be around 60% magnesium and 40% oxygen. Materials: * Goggles * Centigram or analytical balance * 2-4 cm magnesium...
    488 Words | 2 Pages
  • Determining the Empirical Formula of Magnesium Oxide
    Chemistry Lab Report example: Chemistry Laboratory Report (Magnesium Oxide) INTRODUCTION: As we learned before on how to determine the empirical formula of a compound based on the test and also chemical analysis on it. Hence this experiment is mainly goes around with how to determine the empirical formula of Magnesium Oxide following various tight procedures in order to get the knowledge and apply it onto another compounds. We are investigating the empirical formula of Magnesium Oxide...
    1,520 Words | 10 Pages
  • Percentage composition by mass of Magnesium oxide
    Abstract: The purpose of this lab was to test the law of definite proportions for the synthesis reaction of combusting magnesium. In this lab, the polished magnesium ribbon was placed in covered crucible and was heated in order for it to react with Oxygen presented in air and in water provided. The result showed that Magnesium oxide formed through chemical reaction was made up of 60.19% magnesium and 39.81% oxygen, which is approximate proportion of both particles in every Magnesium oxide...
    1,458 Words | 8 Pages
  • Experimental Determination of the Formula of Magnesium Oxide
    Experimental Determination of the Formula of Magnesium Oxide. Introduction: Magnesium is a mental, it is known to react with oxygen. Magnesium reacts vigorously when heated in the presence of air, which is why we have chosen high heat in our method to facilitate combustion. This oxidation reaction produces magnesium oxide gaining oxygen from the air. When sharing of electrons occur a chemical bond is made and the atoms combine to form a molecule. So, the predicted molecular...
    653 Words | 4 Pages
  • Antacids: Calcium Carbonate and Magnesium Compounds
    ANTACIDS- Classification and Mechanism of Action INTRODUCTION Antacids are defined as a substance, generally a base, which counteracts stomach acidity. The name antacid means anti-acid (against acid). Antacids are the primary treatment for ailments such as gastric reflux, gastritis, upset stomach and heartburn. Hydrochloric acid is secreted by the stomach to kill harmful organisms, aid digestion and activate digestive enzymes. Excess secretion of acid into stomach or impaired resistance by...
    1,357 Words | 6 Pages
  • Empirical Formula Lab Magnesium Chlori
    Pre-Lab Discussion An empirical formula is a formula for a chemical compound found by direct laboratory examination. Laboratory procedures allow the chemist to find the simplest whole number ratio of elements within the compound. In order to find the true molecular formula, the chemist also needs to know the compound’s molecular mass. The general procedure is to use laboratory techniques to determine the mass of each element in the compound. In this lab, we will react a known quantity of...
    385 Words | 2 Pages
  • Law of Constant Composition Lab: Magnesium and Oxygen
    Purpose: To determine the percent magnesium by mass in magnesium oxide and to observe if the percentage composition is constant by comparing class results. Hypothesis/Prediction: The percent composition by mass of magnesium in magnesium oxide will not change significantly with each group that conducted the experiment. The composition of each substance should stay the same and any differences must be due to some error. Materials:Magnesium stripCrucibleCrucible coverClay triangleIron ringRetort...
    1,424 Words | 5 Pages
  • Lab Determining the Empirical Formula of Magnesium Oxide
    Abstract In the Lab Determining the Empirical Formula of Magnesium Oxide, students set out to find if there is a true 1:1 ratio in the empirical formula of MgO. This was determined by burning the Magnesium until a white smoke started to protrude. This showed the reaction of Oxygen combining with Magnesium to form Magnesium Oxide. This was then measured again and turned out to be slightly heavier than the measurement before. This added weight is Oxygen, forming the combustion of Magnesium Oxide....
    689 Words | 4 Pages
  • The Effect of the Concentration of Sulphuric Acid on the Reaction Rate with Magnesium
    The Effect of the Concentration of Sulphuric Acid on the Reaction Rate with Magnesium Sarah Cain SCH 4UB Mr. Lankin April 1, 2009 Introduction The nature of the problem is to design an investigation that examines a variable affecting the reaction rate. In this experiment, magnesium will be reacted with different concentrations of sulphuric acid. The reaction is shown by the following chemical equation: H2SO4 (l) + Mg (s) → MgSO4 (aq) + H2...
    1,915 Words | 7 Pages
  • Rate of reaction between Hydrochloric acid and magnesium
    Aim: The aim of my experiment is to find out the rate of reaction between Hydrochloric acid (HCL) and Magnesium (Mg) in different temperatures. The products that will be formed are Magnesium Chloride (MgCl2) and Hydrogen (H2). Prediction: I predict that as the temperature increases the rate of reaction also increases. To further explore the fact I further predict that the rate of reaction will double for every 10° C rise in temperature. I further predict as the temperature rises by 10° C the...
    707 Words | 5 Pages
  • Reaction (rate) between magnesium ribbon and hydrochloric acid
    Aim It is to tell how the reaction between magnesium and hydrochloric acid will be effected if we change the concentration of hydrochloric acid. Introduction In the experiment the magnesium reacts with the hydrochloric acid to create magnesium chloride and hydrogen. The balanced formula for this is: Mg(s) + 2HCL(aq) MgCl2(aq) + H2(g) Magnesium + hydrochloric acid Magnesium Chloride + Hydrogen Magnesium will react with hydrochloric acid, because it is higher in the reactivity series than...
    2,281 Words | 9 Pages
  • This is lab report about The Synthesis and Determination of Empirical Formula for Magnesium Oxide.
    The Synthesis and Determination of Empirical Formula for Magnesium Oxide Aim: To determine the empirical formula for magnesium oxide. Data Collection: Table 1 Mass of empty crucible, crucible + Mg (roughly 1cm pieces of a 15-cm piece of magnesium ribbon), and crucible +MgxOy. (mass measured with an analytical balance). The mass of crucible + MgxOy was obtained after a continuous process of heating, letting cool, heating with water enough to immerse the content and letting cool of the Mg....
    519 Words | 4 Pages
  • magnesium oxide report chemistry experiment empirical mole formula molar mass
    CHEMISTRY EXPERIMENTAL REPORT SALLY LI INTRODUCTION: In chemistry, compounds can be distinguished by using the empirical formula. The formula provides the simplest positive integer ratio of elements in a compound. The empirical formula is largely useful in determining the ratio of elements within ionic compounds where the structure is of a non-directional nature of bonding where any ion at any time could be...
    2,783 Words | 9 Pages
  • Grignard synthesis of trimethylphenol - 1392 Words
     Grignard Synthesis of Tirphenylmethanol David Szuminsky Organic Chemistry Lab II Shaopeng Zhang Monday 1PM 2/10/14 & 2/24/14 - Abstract A sample of triphenylmethanol was prepared using Grignard synthesis techniques. Reflux was used in order to speed up the reaction and the final product was purified using recrystallization methods. The percent recovery and percent yield were 80.46% and 47.526%, respectively. A melting point range of...
    1,392 Words | 6 Pages
  • Nucleophilic Addition to a Carbonyl: the Grignard Reaction
    Procedure: The experimental laboratory procedures were divided into two categories. First the formation of phenylmagnesium bromide, and second the reaction of the phenylmagnesium bromide with the carbonyl compound. However, before any of this could be done, the refluxing apparatus for the Grignard reaction was to be flame dried until no moisture remained inside because any water would cause the reagent to decompose and an alkane to form. The reaction would subsequently fail. Drierite was...
    1,159 Words | 4 Pages
  • Science - 562 Words
    Self Heating Food and Drink Cans Heater meals – originally developed for military use – are ready-made self-heating meal packs. They can be heated in many ways – by pressing a button on the packaging, unwrapping and shaking the pack, or pouring the contents of one bag into another and waiting for a few minutes – all of which use exothermic chemical reactions. These meals can be used to motivate students to study such reactions relatively safely and without the use of a burner. Plus there is...
    562 Words | 2 Pages
  • Gringard Synthesis - 906 Words
    Gringard Synthesis detailed procedure and scheme of the apparatus any changes to the original procedure, actual masses, and obs yield calculations and mp Discussion outline Grignard rxn (what is it used for, why important, the mechanism) Reaction set up (important details) How can the rxn be activated Second step: rxn of the Grignard reagent with acetophenone, quenching with ammonium chloride Isolation of the product, identification Possible or actual sources of error Part one of our...
    906 Words | 3 Pages
  • Empirical Formula : Lab Report
    Name: J.T Empirical Formula of Magnesium Oxide: Lab Report The objective of the experiment is to determine the empirical formula of Magnesium Oxide through a procedure of heating magnesium ribbon to react with oxygen to form a magnesium oxide compound with the correct ratio of atoms within each element; 1:1. Equipment: REFER TO EXPERIMENT SHEET Method: REFER TO EXPERIMENT SHEET Results: Object | Mass (g) | Crucible + Lid | 38.23 | Crucible + Lid + Magnesium | 38.57 |...
    530 Words | 3 Pages
  • Investigate the reactions of Group-2 elements
    Title: Investigate the reactions of Group-2 elements. Objective: To be able to describe the redox reactions of Group-2 elements with oxygen and water To be able to identify trends of reactivity down the Group-2 Equipment required: 2 x250 cm3 beaker Funnel 2x boiling tubes Crucible tongs Calcium granules Magnesium ribbon Magnesium powder Spatula Universal Indicator Thermal mat Filter paper Safety: Wear eye protection. Magnesium and calcium are highly flammable. Calcium...
    1,031 Words | 5 Pages
  • The Grignard Synthesis of Triphenylmethanol - 3172 Words
    Abstract: The purpose of this lab was to synthesize triphenylmethanol from benzophenone and bromobenzene by the formation of a Grignard compound with the reagents bromobenzene and magnesium metal. The bromobenzene was first transformed into the Grignard compound and was then reacted with the benzophenone to make the final product. The mixture was then mixed with sulfuric acid and the organic layer was extracted via a separatory funnel. The mixture was then recrystallized from methanol and was...
    3,172 Words | 9 Pages
  • The Development of Scientific Management - 594 Words
    With the development of scientific management, technology, and productive power, the products concerning the metal Magnesium have been developed in a diversified way involving Mg particle, Mg alloys, Mg powder, Mg ingot, Mg stick, Mg sacrificial anode and high performance sacrificial anode etc. The metal Mg, 2/3 density of the metal Aluminum, is one of the lightest metals. The potential application of the metal Mg is of great importance especially under today’s situation that energy has been...
    594 Words | 2 Pages
  • Determination of a Chemical Formula - 1715 Words
    10/19/2011 Akruti Patel Lab Report #4: Determination of a chemical formula: the empirical formula of Magnesium Oxide 1. Purpose: Determine the empirical formula of magnesium oxide from the percent composition (this can found using the Analytical Method and the Synthesis Method). 2. Introduction: In the late eighteenth century, combustion has been studied extensively. In fact, according to Steven and Susan Zumdahl, Antoine Lavoisier, a French Chemist, performed thousands of combustion...
    1,715 Words | 5 Pages
  • Empirical Formula Lab Report
     FORMAL LAB REPORT INTRODUCTION John Dalton’s atomic theory states that elements combine in simple numerical ratios to form compounds. A compound, no matter how it is formed, always contains the same elements in the same proportion by weight. The law of mass conservation states that mass can neither be created nor destroyed. In this experiment, the mass of the metal was not destroyed or created; the metal’s mass was simply changed into a compound form...
    1,059 Words | 5 Pages
  • Factors Affecting Rate of Reaction
    Aim: To study the factor affecting the rate of reaction. Research Question: What is the effect of concentration on the rate of reaction? Hypothesis: We can predict that by increasing the concentration, the rate of reaction will increase. Firstly the frequency of collisions between the reactants would increase. Secondly, by increasing the concentration, the average kinetic energy of the reactants would increase, thus increasing the collisions. As the products are formed, the concentration of...
    489 Words | 2 Pages
  • Synthesis of Triphenylmethanol - 2645 Words
    Abstract This report presents the synthesis of triphenylmethanol from magnesium, bromobenzene, and benzophenone. A reflux apparatus was used to carry out most of the experiment. A great deal of color changes were noted throughout this process. Triphenylmethanol was successfully synthesized, as can be verified by the IR that was obtained. The melting point was found to be 98.30°C- 146.2°C and the percent yield of triphenylmethanol was calculated to be 61.2%. Introduction One of the most...
    2,645 Words | 9 Pages
  • MgO Chemistry Lab - 630 Words
     Determining the Empirical Formula of Magnesium Oxide By: Madison Attema Due Date: November 22nd SCI3U Mrs. Robertson Introduction In this experiment we were trying to find the percent composition and the empirical formula of Magnesium oxide. Then compare the data we obtained with the data we predicted. We found that the empirical formula that we predicted was completely different than the one we obtained. We predicted the empirical...
    630 Words | 5 Pages
  • Hcl + Mg Lab Report
    Lab Report Background Information: Magnesium is an alkaline earth metal that has the symbol Mg. Magnesium is a fairly strong, silvery-white, light-weight metal (one third lighter than aluminum). In a powder, it heats and ignites when exposed to moisture and burns with a white flame that is harmful to the eyes. It is difficult to ignite in bulk, but once ignited, it is difficult to extinguish. Magnesium Ribbon is a long strip of magnesium metal about 3 millimeters wide and 10 meters long with...
    815 Words | 3 Pages
  • determining empirical formula lab
    Determining Empirical Formula Purpose: use mass relationships to show that magnesium and oxygen combine whole-number ratio by mass. Materials: As stated in lab manual Methods: As stated in lab manual Data/Analysis: a. 21.38g 1. .47g 5. Mg0 b. 21.85g 2. .31 c. 22.16 3. 0.020 d. ammonia 4. 0.019 The purpose of the lab was to use mass relationships to show that magnesium and oxygen combine whole-number ratio by mass. In the lab students were to cut one...
    251 Words | 1 Page
  • Grignard Reaction - 1185 Words
    Nucleophilic Addition to a Carbonyl: The Grignard Reaction Mechanism: Formation of phenylmagnesium bromide: Phenylmagnesium bromide and methyl benzoate reaction: Procedure: Procedure in lab manual should be sufficient. Data Table: The Grignard Reaction |Reagents |MW (g/mol) |Amount used |Lit. Melting Point |Mol used |Mol equivalent | | | | |((c) |...
    1,185 Words | 4 Pages
  • Aaaaaaaaaaaaaaaaaaaaaa - 3270 Words
    NSS Chemistry Part 3 Metals HKCEE Past Paper Questions – Structural Questions 1. HKCEE 1995 Q1 Rubidium (Rb) and potassium belong to the same group in the Periodic Table. The relative atomic mass of rubidium is larger then that of potassium. (a) Explain whether rubidium is more reactive than potassium. (b) Write a chemical equation for the reaction between rubidium and water. (State symbols should be given.) (c) Suggest how rubidium can be stored safely in the laboratory....
    3,270 Words | 26 Pages
  • Introduction to the Classes of Chemical Reactions
    r Lab Report 5 Introduction to the Classes of Chemical Reactions Course: Chem. 1151L, Tuesday & Thursday June 23, 2011 Mr. Nasir Uddin Pre Lab Questions: 1. CaBr2 (aq) + K3PO4 (aq) → CA(PO4)2(S) + KBr (aq) = Ca3(PO4)2 + 6 KBr Double Replacement 2. Li(s) + O2(g) = Li2O(s) =2 Li2O Decomposition 3. CH4 + O2 = CO2 + H2O = CO2 + 2 H2O Combination 4. AgBr(s) = Ag (s) + Br2(l) = 2 Ag + Br2 Combination 5. Mg(s) + H2SO4 (aq) = MgSO4 + H2...
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  • Making Ionic Compounds - 393 Words
    Making Ionic Compounds G1 Chemistry 12/06/2010 Eli Martin, Kien Martin, Taylor Duncan Abstract: The student was testing the results of heating magnesium. The magnesium ignited and then melted in the crucible after the student lit the Bunsen burner. Then the melted magnesium smoked, turned white and glowed. The student would think glowing melted magnesium is very interesting. Hypothesis: If you heat magnesium, then it melts and glows white. Materials: Magnesium ribbon...
    393 Words | 2 Pages
  • Chemistry Essay - 278 Words
    Purpose To investigate the mass changes involved in burning magnesium metal. Materials Stirring rod Retort stand Ring clamp Clay triangle Crucible and lid Bunsen burner Flint lighter Balance Crucible tongs 40 cm of magnesium ribbon Method 1. Find the mass of a clean crucible and lid. USE THE SAME BALANCE DURING THE ENTIRE EXPERIMENT. 2. Curl the magnesium ribbon around a pencil to make a size that just fits inside the crucible. Do not curl the ribbon too tightly....
    278 Words | 2 Pages
  • Milk of Magnesia Titration - 675 Words
    Sean Healy Chemistry #1 Lab Milk of magnesia titration AimTo calculate the amount of Magnesium Hydroxide Mg(OH)2 in a 5ml teaspoon of Milk of Magnesia and compare this with the manufacturers stated valueHEALTH & SAFTEY lab coats, safety glasses, gloves Bags and coats were put to one side of the lab Caution was taken while handling chemicals the chemical were all placed on labelled A4 sheets PLANNING & PREPERATION The following equipment was gathered 250ml...
    675 Words | 4 Pages
  • Farhampton Inn - 498 Words
    The Magnesium Oxide Lab In a compound the atoms of different elements are present in numbers whose ratio is usually an integer or a simple fraction. The simplest (or empirical) formula of the compound expresses that ratio. Simplest formulas are determined by establishing the mass of each element present in a sample of the compound. From those masses one finds the number of moles of each element present. The mole ratio is also the atom ratio in the compound and that ratio provides the...
    498 Words | 2 Pages
  • Empirical Formula - 596 Words
    Empirical Formula Lab Class: Chemistry 1405 Fall 2013 Aim: The aim of this Lab Exercise is to use the mass of a chemical and use that mass to find the amount of moles of the final product you can get using the empirical formula. Introduction: The empirical formula of a compound is the simplest whole-number ratio of the elements in the compound, which as you will discover, is a ratio of the moles of those elements. “Empirical” also means “experimentally determined”. In this...
    596 Words | 2 Pages
  • Experiment 6- Empircical Formula of a Compound
    EXPERIMENT 6 – Empirical Formula of a Compound INTRODUCTION Chemical formulas indicate the composition of compounds. A formula that gives only the simplest ratio of the relative number of atoms in a compound is the empirical formula or simplest formula. The ratio usually consists of small whole numbers. We call a formula that gives the actual numbers of each type of atom in a compound the molecular formula. The numbers in a molecular formula will be whole number multiples of the numbers in an...
    1,911 Words | 7 Pages
  • Grignard Reaction Lab Report
    The Grignard Reaction Abstract Through the use of the Grignard reaction, a carbon-carbon bond was formed, thereby resulting in the formation of triphenylmethanol from phenyl magnesium bromide and benzophenone. A recrystallization was performed to purify the Grignard product by dissolving the product in methanol. From here, a melting point range of 147.0 °C to 150.8 °C was obtained. The purified product yielded an IR spectrum with major peaks of 3471.82 cm-1, 3060.90 cm-1, 1597.38 cm-1, and...
    2,774 Words | 8 Pages
  • MU2.8 Understand how to support the nutritional dietary needs of children
    MU2.8 Understand how to support the nutritional and dietary needs of children 4.1 Define the basic nutritional requirements of children to ensure a balanced diet and meet government guidance. Children and young people need to have and maintain a good and healthy diet, therefore it is important for staff to promote healthy eating to both children and parents. Having and maintaining a healthy diet during childhood can improve the child's concentration and ...
    843 Words | 4 Pages
  • Synthesis of Grignard Reagents - 1757 Words
    Abstract: The purpose of this lab is to prepare phenylmagnesium bromide, a Grignard reagent, and react it with benzophenone to give triphenylmethanol. Once made, the Grignard reagent will do a nucleophilic attack on the carbonyl carbon of the ketone, benzophenone. The result is an alkoxide that is then protonated to give the alcohol, triphenylmethanol. The purity of the final product will then be considered by melting point and IR spectroscopy. Final purified triphenylmethanol weighed 8.02...
    1,757 Words | 5 Pages
  • Grignard Synthesis of Triphenylmethanol from Benzophenone
    Grignard Synthesis of Triphenylmethanol from Benzophenone Purpose: The purpose of this experiment was to synthesize the tertiary alcohol triphenylmethanol from a Grignard reagent, phenyl magnesium bromide. The Grignard reagent was synthesized from bromobenzene and magnesium and then reacted with benzophenone to produce triphenylmethanol. It was important that water be excluded from the reaction, in order to prevent the formation of benzene. The reaction of phenyl magnesium bromide and...
    1,972 Words | 8 Pages
  • Observing a Limiting Reactant - 678 Words
    Observing a Limiting Reactant An experiment was carried out to predict the limiting reactant in a chemical reaction between Magnesium and Hydrochloric acid, using the mole concept. Limiting Reactant: It is the reactant that will deplete or will be used up first during a chemical reaction. Limiting reactant also determine how long the reaction will last for. Balanced Equation: Mg + 2HCl = MgCl2 + H2 The balanced equation is needed to determine the mole ratio between the two reactants....
    678 Words | 3 Pages
  • PHARMACEUTICAL CHEM NOTES - 2576 Words
    PHARMACEUTICAL CHEMISTRY Chapter 5 – Gastrointestinal Agents • Inorganic agents used to treat gastrointestinal disorders includes: 1. Products for altering gastric pH 2. Protectives for intestinal inflammation 3. Adsorbents for intestinal toxins 4. Cathartics of laxatives for constipation ANTACIDS o neutralize excess hydrochloric acid o inactivate the proteolytic enzyme, pepsin o alkaline bases Results of Hyperacidity: o Gastritis – inflammation of the gastric mucosa o Peptic...
    2,576 Words | 20 Pages
  • Reaction - 696 Words
    Announcements 1) Important Due Dates: Experiment #6: Diels-Alder Nov. 1/2 Diene NMR on website Product NMR on server (note: Exp. # follows HawkID) Experiment #7: Wittig 2) 3) Next Week: Experiment #8: Grignard Repeat Wittig lecture Nov. 5 Nov. 8/9 Experiment #8: Grignard Reaction - Grignard reaction: carbonyl compound and Grignard reagent - useful reaction in organic synthesis: forms C-C bond R X R MgX Grignard reagent R = 1o, 2o, or 3o alkyl, aryl, vinylic X = Cl, Br,...
    696 Words | 7 Pages
  • Physarum Lab - 884 Words
     Calcium, Magnesium, and Cytoplasmic Streaming in Physarum Polycephalum Eugenia Rita Lee Dr. Bonner BIO 111 Introduction: Physarum polycephalum is a type of slime mold of the myxogastria class that prefers warm and damp conditions. It can go through three forms, plasmodium, sclerotium, and sporangia. The plasmodium is the primary active state, where P. polycephalum consists of protoplasmic veins and multiple nuclei. During this stage, the slime mold surrounds its’ food and...
    884 Words | 3 Pages
  • The Journey of The sperm and the ovum - 563 Words
    Magnesium General Information of The Element Magnesium is the twelfth element on the periodic table. The atomic number is 12, and its atomic mass is 24.305. Magnesium’s boiling point is at 1090C or 1994F, and its melting point is at 650C or 1202F.Its state of matter is solid. It is located in the second group called the alkaline earth metals. Magnesium is found in seawater, salty layers and in many rock minerals. IT could be used as metal. It’s the third most abundant structural...
    563 Words | 2 Pages
  • Empirical Formula of a Compound - 414 Words
    Empirical Formula of a Compound * Purpose: To determine the empirical formula of Magnesium Chloride. * Data 1. Mass of evaporating dish = 45.08g 2. Mass of evaporating dish and Magnesium = 45.17g 3. Mass of Magnesium: { 2 } – { 1 } = 0.09 4. Mass of evaporating dish and Magnesium Chloride First weighing = 45.48g (After heating and cooling) second weighing = 45.49g 5. Mass of Magnesium Chloride: { 4} – { 1 } =...
    414 Words | 2 Pages
  • Dennis Addae Boadu Chm 246
    Dennis Addae Boadu CHM 246 Professor Zuniga GRIGNARD SYNTHESIS OF TRIPHENYLMETHANOL FAILURE The purpose of this experiment was to synthesize the Grignard reagent, phenyl magnesium bromide, and then use the manufactured Grignard reagent to synthesize the alcohol, triphenylmethanol, by reacting with benzophenone and protonation by H30+. The triphenylmethanol was to be purified by recrystallization. It was quite unfortunate that we were not able to accomplish this goal. Our...
    499 Words | 2 Pages
  • Grignard Reaction - 829 Words
    The purpose of this experiment was to synthesize triphenylmethanol from a Grignard reagent. The Grignard reaction technique was used in this synthesis but due to the fact that it is such a strong nucleophile and base, it was important to prevent water from interfering with the Grignard reaction. Purity of the product was determined by measuring the melting point. Reagent Table: Structure Name Molecular formula Molar mass Density Melting point Boiling Point Diethyl ether...
    829 Words | 4 Pages
  • Moles: Mole and Formula Units
    ***ANSWERS*** CP Chemistry Mole Review Practice Problems Find the mass of 0.89 mol of calcium chloride. 0.89mol x 111 g / 1 mol = 98.8 g Determine the number of moles of C5H12 that are in 362.8g of the compound. 362.8g x 1 mol / 72 g = 5.04 mol Find the mass of 0.159 mol of silicon dioxide. 0.159 mol x 60 g / 1 mol = 9.54 g You are given 12.35 g of C4H8O2. How many moles of the compound do you have? 12.35 g x 1 mol / 88 g =...
    330 Words | 2 Pages
  • Water and Empirical Formula - 432 Words
    PERCENTAGE COMPOSITION WORKSHEET 1. Calculate the COMPLETE percentage composition (by mass) of the following: (a) iron (III) oxide (Fe = 70.0%, O = 30.0%) (b) barium phosphate (Ba = 68.4%, P = 10.3%, O= 21.3%) 2. What is the percentage of sodium (by mass) in sodium phosphate? (42.1%) 3. For the hydrate sodium sulfate decahydrate, calculate the following: ­­­ (a) the percent of sodium (by mass) in the hydrate (14.3%) (b) percent of TOTAL oxygen (by mass)...
    432 Words | 0 Page
  • Empirical Formula - 378 Words
    Chemistry pre- IB Empirical Formula Observations/Qualitative Data: I have used my sense to observe that the magnesium is a solid that is bendable, is very light and its color is silver. After being put in a Crucible covered by a lid, under a Bunsen burner for a few minutes, it has lit up and turned red. After the experiment was over, the magnesium was turned into an ash/powdery state and its color became white/grey. Data collection and Processing (DCP): Quantitative Data: Weight in grams...
    378 Words | 2 Pages
  • The Grignard Reaction - Synthesis of 1,2-Diphenyl-1,2-Propanediol Via a Diastereoselective Reaction
    Objective: The purpose of this experiment was to prepare the Grignard reagent methylmagnesium iodide and react it with benzoin to form the 3o alcohol 1,2-diphenyl-1,2-propanediol, through an addition reaction pathway. Introduction: Grignard reagents are alkyl or aryl-magnesium halides that act as the nucleophile in Grignard reactions, where ketones are reacted with the reagent, then treated with acid to produce an alcohol. In the case of this experiment, methylmagnesium iodide was...
    1,170 Words | 6 Pages
  • Effect of Nutrients Deficiency and Toxicity in Plants
    The effect of nutrient deficiency and toxicity in plants Nutrient Micronutrient Nitrogen (N) Deficiency effect Toxicity effect Leaves become dark green and susceptible to drought, pests and diseases as well as failed yield for fruits and seed crops. Limit the uptake of other nutrient, which is magnesium or potassium. Older leaves at the bottom of plant will start to become yellowish (chlorosis) while the rest of the plant’s leaves will be light green. Calcium (Ca) Newer leaves at the top of...
    376 Words | 2 Pages
  • Lab Report - 347 Words
    Lab Report Abstract: The purpose of this lab was to see how magnesium reacts with oxygen. This reaction must be forced with heat. As magnesium changes to magnesium oxide the mass increased. Procedure: 1. Set up the stand and bunsen burne. 2. Go to crucible heat oven to obtain a crucible. 3. Weigh the crucible and lids mass. 4. Break up the magnesium ribbon on the crucible and weigh the mass of the magnesium, crucible, and lid. 5. Place the crucible on the ring stand over the flame....
    347 Words | 2 Pages
  • Grignard Synthesis of Triphenylmethanol Lab Report
    The Grignard Synthesis of Triphenylmethanol Organic Chemistry Lab II March 19, 2012 Abstract The purpose of this experiment was to synthesize the Grignard reagent, phenyl magnesium bromide, and then use the manufactured Grignard reagent to synthesize the alcohol, triphenylmethanol, by reacting with benzophenone and protonation by H3O+. The triphenylmethanol was purified by recrystallization. The melting point, Infrared Spectroscopy, 13C NMR, and 1H NMR were used to characterize and...
    5,143 Words | 14 Pages
  • Grignard Synthesis Of Triphenylmethanol Patrick
    Grignard Synthesis of Triphenylmethanol Aim The aim of this experiment was to prepared Grignard reagent (phenylmagnesium bromide) from bromobenzene and magnesium, to use the reagent prepared to synthesise a tertiary alcohol (triphenylmethanol) by reacting reagent and ester (methyl benzoate), and the product formed is analyse by infrared spectroscopy (IR), melting point, thin layer chromatography (TLC), gas chromatography mass spectrum (GCMS) and finally Nuclear Magnetic Resonance spectroscopy....
    1,948 Words | 8 Pages
  • Report 2 - 1448 Words
    Practical 5: Properties of Compound Experiment 1: Properties of A Compound and Its Parent Elements Hypothesis The hypothesis of this experiment is magnesium oxide can be synthesized by combining (burning) the magnesium with oxygen. The chemical and physical properties of each element (magnesium, oxygen, and magnesium oxide) might be different, from the state, color, electrical conductivity, and pH. Aim This experiment was performed to synthesize magnesium oxide by direct combination of...
    1,448 Words | 6 Pages
  • Coupled Reactions - 510 Words
    Experiment No. 2: Coupled Reactions Hibeejeebee Institute of Chemistry, University of the Philippines, Diliman, Quezon City 1101 Philippines Results and Discussions In this experiment, two setups involving magnesium pieces were executed in succession; the first one had ignited pieces of magnesium left burning between two slabs of dry ice with vent holes; the second involved lighting up magnesium strips openly in the air. The following table summarizes the observations obtained from...
    510 Words | 2 Pages
  • Massing Mg Lab - 1002 Words
    Massing Magnesium Lab Research Question/Aim To understand the change in mass after burning magnesium and to also determine the chemical formula of magnesium oxide Hypothesis Burning the magnesium will result in an increase in mass because the magnesium will react with oxygen in the air to make magnesium oxide Variables Independent- Initial mass of magnesium (Mg) Dependent- Mass of the burnt magnesium (MgO) Controlled: Intensity of flame Apparatus used (same crucible, Bunsen...
    1,002 Words | 7 Pages
  • Mgo Lab - 1231 Words
    Empirical Formula Determination- Magnesium Oxide Lab Purpose: To determine the % Composition & Empirical Formula of Magnesium oxide. Background: We have been talking about the uses of the formulas of compounds as well as how to determine the simplest (empirical) formula of a compound based on chemical analysis. The purpose of this lab is to put this knowledge to use. During this lab you will start with two separate elements and create a compound. Using the mass of the elements that you...
    1,231 Words | 5 Pages
  • Milk of Magnesia - 1031 Words
    Phillips’ Milk of Magnesia Our stomach acid is a mixture of different compounds that assist in the breakdown of foods that we ingest. One of the major components is hydrochloric acid (HCl(aq)). We need this acid to help digest our food and kill bacteria that may enter the stomach along with the food. In the absence of food there is an excess amount of acid in our stomachs. This excessive acid production results in the unpleasant symptoms of heartburn and may contribute to the formation of...
    1,031 Words | 3 Pages
  • science - 2451 Words
    Centre Number For Examiner’s Use Candidate Number Surname Other Names Examiner’s Initials Candidate Signature Question General Certificate of Secondary Education Higher Tier June 2012 Science A CH1HP H Unit Chemistry C1 Chemistry Unit Chemistry C1 Friday 15 June 2012 1.30 pm to 2.30 pm Mark 1 2 3 4 5 6 7 8 TOTAL For this paper you must have: a ruler the Chemistry Data Sheet (enclosed). You may use a calculator. Time allowed 1...
    2,451 Words | 28 Pages
  • Chemistry Past Exam Paper (Cambridge Igcse)
    UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS International General Certificate of Secondary Education *4308315385* CHEMISTRY Paper 2 Candidates answer on the Question Paper. No Additional Materials are required. READ THESE INSTRUCTIONS FIRST Write your Centre number, candidate number and name in the spaces at the top of this page. Write in dark blue or black pen. You may need to use a pencil for any diagrams, graphs or rough working. Do not use staples, paper clips, highlighters, glue...
    2,372 Words | 24 Pages
  • Alkaline Earth Metals - 267 Words
    ALKALINE EARTH METALS what are alkaline earth metals? Alkaline earth metals are elements that are in the second group of the periodic table. the elements have two electrons on the outermost shell. the elements include Beryllium, magnesseum, calcium,strontium, barium and Radium.The alkaline earth metals are all silver­colored and soft, and have relatively low densities, melting points, and boiling points. In chemical terms, all of the alkaline metals react ...
    267 Words | 2 Pages
  • Calcium Hydroxide - 846 Words
    1 a The diagram shows the parts of a hydrogen atom. [pic] Use words from the list to label the diagram. electron group nucleus symbol (2) b Hydrogen can be used as a clean fuel for cars. i When hydrogen burns in air, it reacts with another element. Complete the word equation for this reaction. hydrogen + ................... → water (1) ii Suggest one reason why hydrogen is called a clean fuel. (1)...
    846 Words | 5 Pages
  • Empirical Formula Lab - 619 Words
    A) January 18, 2011B) Empirical Formula C) The purpose is to determine the empirical formula of a metallic oxide. D) Pre Lab Questions: After heating the metal, the crucible and contents should mass less than it did before it was heated. This is because heating the crucible may rid of other residue that was left in it; bringing it a to a constant mass. A yellow flame will deposit soot on the crucible. This would be a problem because the soot left on the crucible would vary from our...
    619 Words | 3 Pages
  • Book review of The Firework Maker’s Daughter
    Book review of The Firework Maker’s Daughter The story is about a firework maker called Lalchand and his daughter, Lila, who also wanted to be a firework maker. One day Lila runs away to get the last ingredient needed to be a successful firework maker. In a volcano Lila finds the royal sulphur (the last ingredient) but she was in danger of burning. Her friend Chulak, and the white elephant Hamlet, save her from the flames of the lava by giving her some fireproof water from the goddess of...
    322 Words | 1 Page
  • Reactivity Series Investigation Page1
    Experiment on Metals Aim-To find out which of these metals will be most reactive with hydrochloric acid,and plan an investigation to test it out.The Metals given:Calcium,Aluminium,Iron,Magnesium and Zinc. Prediction-I predict that the metal will be the most reactive with hydrocholoric acid is calcium because calcium is in Group 2 which is the alkaline earth metals in the periodic table and because calcium is at the extreme left side of the periodic table and as you go across a period,the element...
    1,030 Words | 3 Pages

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