Sodium Essays & Research Papers

Best Sodium Essays

  • sodium - 486 Words
    Sodium From Wikipedia, the free encyclopedia This article is about the chemical element. For the PlayStation Home game, see Sodium (PlayStation Home). For the racehorse, seeSodium (horse). "Natrium" redirects here. For the town in West Virginia, see Natrium, West Virginia. Sodium 11Na...
    486 Words | 6 Pages
  • SODIUM - 4054 Words
    SODIUM gSodium is a chemical element with the symbol Na (from Latin: natrium) and atomic number 11. It is a soft, silver-white, highly reactive metal and is a member of the alkali metals; its only stable isotope is 23Na. The free metal does not occur in nature, but instead must be prepared from its compounds; it was first isolated by Humphry Davy in 1807 by the electrolysis of sodium hydroxide. Sodium is the sixth most abundant element in the Earth's crust, and exists in numerous minerals...
    4,054 Words | 13 Pages
  • Sodium and Ml - 829 Words
    1a. Urea [(NH2)2CO] is produced by reacting ammonia with carbon dioxide with the release of water. In one process 637.2g of ammonia is treated with 1142g of carbon dioxide A. Write a balance equation for the above reaction B. Which of the 2 reactants is the limiting reagent C. Calculate the mass of urea formed D. How much excess reagent is left at the end of the reaction E. If the actual yield of urea formed was 980g what is its yield % a. Ans. 2NH3 + CO2  (NH2)2CO + H2O (17)...
    829 Words | 4 Pages
  • Sodium Intake - 958 Words
    Sodium is a mineral that is present only in small quantities in most natural foods, but salt is added, often in large amounts, in food processing and by cooks to enhance flavor. Sodium is the predominant ion in extra cellular fluid. Sodium (Na) is the predominant cation in extra cellular fluid and its concentration is under tight homeostatic control. Excess dietary sodium is excreted in the urine. The kidney very efficiently reabsorbs the mineral when intakes are low or losses are excessive....
    958 Words | 3 Pages
  • All Sodium Essays

  • Sodium Chloride - 1718 Words
    Sodium chloride, also known as salt, common salt, table salt, or halite, is an ionic compound with the formula NaCl. Sodium chloride is the salt most responsible for the salinity of the ocean and of the extracellular fluid of many multicellular organisms. As the major ingredient in edible salt, it is commonly used as a condiment and food preservative. [edit] Properties Thermal conductivity of pure NaCl as a function of temperature has a maximum of 2.03 W/(cm K) at 8 K and decreases to 0.069 at...
    1,718 Words | 6 Pages
  • Sodium Zeolite Softening - 2068 Words
    Sodium Zeolite Softening Introduction Cation Exchanger Bead + + + + + - -+ -+ + + + + -+ + + - -+ -+ + - + + -+ Ion exchange is the process in which materials exchange one ion for another, hold it temporarily, and release it to a regenerating solution. These materials are widely used to treat raw water supplies that contain dissolved salts. Today, the most commonly used material is an ion exchange resin. Resins are plastic beads to which a...
    2,068 Words | 9 Pages
  • Sodium and Conical Flask - 386 Words
    Equipment used • Conical flask • Filter • Funnel • Beaker • Stirring rod • Evaporating basin • Bunsen burner • Watch glass Method For this coursework I had to find out the Cations and Anions for a given substance. This is the method I used. Firstly I measured out 5 grams of Mummion and added it to a 100 cm3 of distilled water I stirred this for a little while until I was left with a red solution. Next I filtered this solution through filter paper into a conical flask. I now had...
    386 Words | 2 Pages
  • Sodium Chloride Experiment - 339 Words
    Making Sodium Chloride Equipment: Method: 1. Firstly, safety measures were taken by putting on laboratory coats, wearing safety goggles and tying long hair back. This was to protect clothing, eyes and to avoid burning as the experiment included dealing with open flames. 2. The equipment needed (as shown and labelled in picture A) was collected. 3. Using a measuring cylinder for each, to be exact with measurements, we measured out 10cm³ of HCl and...
    339 Words | 2 Pages
  • Periodic Table and Sodium - 725 Words
    Sodium, one of many elements in the periodic table is being used in everyday life, it is also an essential element within your body. It is just another element, but one of the differences is that this element is something that most people consume every day. Sodium has played an important role in everyday life because of its uses in medicine, industry, and agriculture(Shriver). Sodium was discovered in 1807 by a man named Sir Humphrey Davy. He was well known for his discoveries of most alkali...
    725 Words | 2 Pages
  • Saponification: Sodium Hydroxide and Soap
    1. Functions of Soap Soap primarily serves as a dirt remover and a cleanser. It is used in bathing, cleaning, and also as a lubricant. Oil, grease, and other forms of dirt do not dissolve in water. Conversely, soap can suspend these in such a way that it can be discarded through its ability to act as an emulsifying agent. This emulsifying agent enables the dispersion of liquid into another immiscible liquid. In this manner, oil does not mix with water whereby able to induce dirt. 2. Raw...
    590 Words | 3 Pages
  • Sodium Chloride and Orange Oil
     Review of Related Literature Calamondin or Clamansi, Citrofornella microcarpa, belong to the fruit tree family Rutaceae. The fruit of the Calamansi is a small, round lime, a little bigger than the size of a thumbnail, about 30 mm (an inch) in diameter....
    972 Words | 2 Pages
  • Chemical Reactions- Sodium Hydroxide
    Chemical Reactions- Sodium Hydroxide A chemical reaction is a change where two or more substances are changed into a new substance. You can identify a chemical reaction by colour change, effervescence (bubbles), when light or heat given off, and the change is usually irreversible. There are 6 main types of chemical reactions- combustion (often called burning), synthesis, decomposition, neutralization, single replacement and double replacement. A combustion reaction is a reaction with oxygen,...
    1,545 Words | 8 Pages
  • Thermal Decomposition of Sodium Hydrogen Carbonate
    Chemistry Write-Up The Thermal Decomposition of Sodium Hydrogen Carbonate Aim: When Sodium Hydrogen Carbonate (NaHCO3) is heated, Carbon dioxide and water are given off to leave a white powder. The aim is to find the equations for this reaction. Hypothesis: The experiment will prove which of the equations below is true. It will tell us whether Sodium Carbonate is produced or Sodium Oxide. 2NaHCO3  Na2CO3 + CO2 + H2O 2NaHCO3  Na2O + 2CO2 + H2O Variables: Independent:...
    535 Words | 3 Pages
  • Preparation of a Standard Solution of Sodium Carbonate
    BTEC Chemistry – Titration experiment I – Standard Solution Prep Preparation of a standard solution of sodium carbonate Anhydrous sodium carbonate is a suitable chemical (primary standard) for the preparation of a standard solution. Standard Solutions are critical in chemistry because you need to have solutions with an EXACT known concentration and volume. Chemicals/Materials:   solid sodium carbonate (Na2CO3) distilled water    Apparatus:    250cm3 volumetric flask 250cm3 beaker...
    428 Words | 2 Pages
  • Sodium Chloride and Water -different Concentrations
    Material and Methods * Osmosis : -thistle funnel tube -dialysis tubing sack -saturated NaCl w/food coloring -beaker with distilled H2O The experiments begins with the construction of a simple osmometer by obtaining pre-soaked length of tubing ,opened and tied at the end. The tube is filled with saturated NaCl solution (with added food coloring) and the thistle is inserted in the dialysis tubing. The dialysis tubing is sealed to the thistle funnel with dental floss and placed in a...
    623 Words | 3 Pages
  • Vinegar: Sodium Hydroxide and Measuring Cylinder
    Who's been cheating on the vinegar? Aim: To investigate if the vinegars have been diluted by working out their concentrations. Scientific Background: Vinegar is an acid and there fore can be neutralised by an alkali. Acid + Alkali à salt + water Hydrochloric acid + Sodium Hydroxide à Sodium chloride + water Vinegar is a weak acid and therefore it only partially ionises in solution. CH3COOH ßà CH3COO- + H+ An alkali such as Sodium Hydroxide has a formula NaOH. If the...
    659 Words | 3 Pages
  • Ketone Reduction Using Sodium Borohydride
    Experiment 5B: Ketone Reduction Objective: Using sodium borohydride as a reducing agent, the ketone 4-tert-butylcyclohexane is reduced to its corresponding alcohol. It is purified through extraction techniques to give the cis and trans diasteromer products. Procedure: The procedure was followed as outlined in Mayo’s book for Experiment 5B with the following modifications: 1. Reagents and Equipment – The reaction will be on a scale of 2X what is described in the text. 2. Reagents and...
    417 Words | 2 Pages
  • Standardization of Hydrochloric Acid by Sodium Carbonate
    Standardization of hydrochloric acid by sodium carbonate Concentrated hydrochloric acid is roughly 11 M. Pour out into a measuring cylinder about 2 cm3 of concentrated hydrochloric acid. Transfer it to a 250 cm3 flask and make up to the mark with water. Shake well. Put some pure sodium hydrogen carbonate or anhydrous sodium carbonate into an evaporating dish and heat gently over a low flame for about fifteen minutes, stirring continuously. Take care not to heat the mass too strongly or...
    553 Words | 2 Pages
  • Osmosis: Sodium Chloride and Onion Cells
    Osmosis/Plasmolysis Lab Name: Problem: How do solutions of various salt concentrations influence osmosis in relation to an onion cell? Materials: (per student group): red onion epidermis forceps, dropper distilled water NaCl solution paper towels microscope slide cover slip Procedure 1. Make a wet mount of the red onion epidermis. 2. Examine under low power. When you have a clear view of several cells, switch to high power. Make a labeled...
    442 Words | 3 Pages
  • Investigating Stoichiometry with Sodium Salts of Carbonic Acid
    Experiment 7 Investigating Stoichiometry with Sodium Salts of Carbonic Acid Introduction: The student will perform the experiment in order to find the percent yield by using the theoretical value found using the balanced equation for sodium carbonate as well as sodium bicarbonate. The objective is to stabilize the substances by titrations and finding the percent yield when all the data is collected. The purpose of this procedure is so that the student will get better understanding of...
    1,238 Words | 4 Pages
  • The Rate of Reaction Between Sodium Thiosulphate and Hydrochloric Acid
    The rate of reaction between sodium thiosulphate and hydrochloric acid Candidate name: Yeo Jin Kim (Kimberly Kim) Candidate number: 000791-021 Teacher: Yitao Duan 1.0 Aim The aim of this experiment is to investigate the changing of concentration effect the rate of reaction between sodium thiosulphate and hydrochloride. 2.1 Chemical Equation 2.0 Raw data 3.2 Qualitative Data 2.1.1 Before the experiment Substance | Color | State | Smell | Hydrochloride (HCl) |...
    1,378 Words | 5 Pages
  • The Effects Sodium Chloride Has on Pond Water
    The Effects Sodium Chloride has on pond water Introduction Ponds are depressions in the ground that fill with water from either run offs or melting snow or rain fall from many different weather changes. There are two types of ponds permanent and temporary. Ponds tend to be much smaller in size and are usually only six to ten feet in depth. This differs from a lake because the size of a lake is much larger and is much deeper. The temperature of a pond is usually the same from top to bottom...
    1,380 Words | 4 Pages
  • how reaction rate varies with sodium thiosulphate
    How reaction rate varies with sodium thiosulphate concentration Background information Sodium thiosulphate and hydrochloric acid are both colourless liquids, when the two reactants are reacted together they produce sulphur. The sulphur that is produced from the reaction changes the solution to yellow and cloudy, this is a precipitation reaction, where a two solutions react and a solid forms in the solution, the solid is said to precipitate out. Some reactions will occur quickly such as...
    2,889 Words | 11 Pages
  • LAB Report Experiment 7 Investigating Stoichiometry with Sodium Salts of Carbonic Acid
    Gracen Seiler April 7th, 2015 Section- 109 Investigating Stoichiometry with Sodium Salts of Carbonic Acid Introduction- This experiment is intended to help find a better understanding of chemical stoichiometry through titrations of NaHCO3 and NA2CO3 with HCl. A chemical reaction is a process that involves rearrangement of the molecular or ionic structure of a substance, as opposed to a change in physical form in a nuclear reaction. Titration is when a measured amount...
    868 Words | 5 Pages
  • How Does the Concentration of the Sodium Thiosulfate Affect the Rate of Reaction to Hydrochloric Acid?
    Investigation How does the concentration of the sodium thiosulfate affect the rate of reaction to hydrochloric acid? contents page 1: contents, aim, prediction, equation, diagram page 2: equipment, preliminary experiments page 3: page 4: page 5: page 6: page 7: page 8: Aim: In my investigation I am trying to find out how the rate of reaction between sodium thiosulfate and hydrochloric acid gets affected but the concentration of the thiosulfate. Prediction: My...
    3,108 Words | 10 Pages
  • Textile: Sodium Hydroxide and 2. 3. 4. 5. 6. 7. 8
    Module Title: Textile Dyeing, Printing & Finishing. Module Code: TEX-203 Teacher Name: Md. Sadiqur Rahman Reference Book:  Dyeing and Chemical Technology of Textile Fiber. By – E.R. Trotman  Dyeing and Chemical Technology. By- V.A. Shenai Lecture: 02 Wet Processing: Wet processing is a technology which convents in grey fabric into finished fabric by the application of dye, water and auxiliaries. Wet processing is the combination of dyeing, printing and finishing. Sequence/Flow chart of wet...
    1,384 Words | 6 Pages
  • Lab Report 7 Investigating stoichiometry with Sodium Salts of Carbonic Acid
    Experiment 7 INVESTIGATING STOICHIOMETRY WITH SODIUM SALTS OF CARBONIC ACID Introduction In this experiment we are going to get a better understanding of chemical stoichiometry. We are going to be reacting sodium bicarbonate (NaHCO3) and sodium carbonate (Na2CO3) with hydrochloric acid (HCl). To start off the mass of two unknown substances (being the sodium bicarbonate and sodium carbonate) will be taken. We will need to construct balanced equations for both of the reactants with the HCl...
    792 Words | 3 Pages
  • The Effect of Mercury on Sodium Transport Across a Cane Toad (Bufo Marinus) Skin Epithelium Essay Example
    The Effect of Mercury on Sodium Transport Across a Cane Toad (Bufo Marinus) Skin Epithelium Tchong Lioong CHEUNG KAI SUET School of Biomedical, Bimolecular and Chemical Sciences, Department of Physiology, The University of Western Australia, Crawley, Australia 6009. Received 23rd April 2012; revised 7th May 2012; accepted 7th July 2012 _____________________________________________________________________________ Abstract Mercuric Chloride (HgCl2) was used to investigate apical...
    1,776 Words | 6 Pages
  • Disappearing X Experiment. Coursework about sodium thiosulphate and hydrochloric acid. Method, Results, Fair Testing, Evaluation included. Was marked with a passing grade.
    Disappearing X Experiment Introduction I am going to investigate the rate of reaction between sodium thiosulphate (thio) and hydrochloric acid. Hydrochloric Acid + Sodium Thiosulphate "" sodium chloride + water + sulphur The reactants are both colourless, but one of the products, sulphur, is yellow, so we can use this fact to follow the rates of reaction. I am going to investigate how the concentration of the acid effects the speed of the reaction. Apparatus 1 small measuring cylinder 1...
    654 Words | 5 Pages
  • Qualitative Analysis Lab - 1545 Words
    Casey Brown Lab Partner: Samed Obeng Qualitative Analysis Lab 4/2/12-4/9/12 Objective of Experiment: The purpose of the experiment is to identify every cation present in an unknown solution by performing specific chemical tests. Chemical tests such as adding specific chemicals to make precipitates, adding strong and highly concentrated acids and bases, centrifuging the precipitate from the supernate, and performing a flame test are carried out to determine the presence or absence of the...
    1,545 Words | 5 Pages
  • Synthesis of Safrole - 1426 Words
    A Synthesis of Safrole and o-Safrole W.H. Perkin & V.M. Trikojus J. Chem. Soc. 1663 (1927) HTML by Rhodium No direct synthesis of safrole has been recorded, the most recent attempt being that of Baker and Robinson (JCS, 1925, 127, 1424), who distilled the product of the action of silver oxide and water upon gamma-piperonylpropyltrimethylammonium iodide, but obtained isosafrole, the double bond moving into the position of greater stability. Kawai (Sci. Papers Inst. Phys. Chem. Res., 1925, 3,...
    1,426 Words | 4 Pages
  • Balancing Chemical Equations - 481 Words
    Balancing chemical formula Rules for writing equations Find out the reactants and products of the chemical reaction. Write a word equation representing the reaction. Using your valency table, write the formula for each of the reactants and products. Count number of atoms of each type on each side of the equation. If the number of atoms is the same, then the equation is balanced. If they do not agree, add numbers before any compound so that they do balance. Never change the formula...
    481 Words | 4 Pages
  • Water Intoxication - 841 Words
    Being the most abundant and important compound to life, living organisms would not exist without water. Within the human body the majority of biological reactions require water to take place. Although it is possible for human survival without nutrients for up to several weeks, without water humans would die in a matter of days. In the human body, water makes up 60-70% of adult body weight. At cellular level water makes up between 70-95% of the mass of a cell. The amount of water in the human...
    841 Words | 3 Pages
  • Chem Lab 19A - 531 Words
    Lab 19A Answers: 1) If we increase the molarity of NaOH from 0.1M to 0.2M, it will actually take less number of drops in order to change the color of the solution. This is because the more concentrated a substance is, less of the substance is needed to cause an equilibrium shift. 2) When you add 6.0M NaOH into the iron (III) thiocyanate ion equilibrium system, the concentration of Fe3+ ion decreases. This causes the equilibrium system to shift to the left (reactant) side. This is why the...
    531 Words | 2 Pages
  • Bondlab - 1147 Words
    Bond By INSTRUCTOR: PURPOSE/INTRODUCTION The purpose of this experiment is to examine the properties of six common chemicals based upon their inherent molecular properties. Though this experiment, we can study and compare the bond properties of these chemicals. This experiment is also an introduction comparison of ionic and covalent bonding through real world testing. The properties of each type of bond will be exploited to the fullest during these tests. MATERIALS Materials...
    1,147 Words | 6 Pages
  • Demonstration and Observation of How an Endothermic Reaction Works
    9A Endothermic Bilal Ali Aim: To demonstrate and observe how an endothermic reaction works. Hypothesis: In these practical’s there were a lot of observations: 1) Magnesium and Hydrochloric Acid: what I observed was at the start it was 20.5oc then when I added hydrochloric acid it increased 23.7oc and there was steam coming out. 2) Hydrochloric Acid and Sodium Hydroxide: the initial temp was 20oc then when I added Sodium hydroxide it went up to 29℃. But there was no visual reaction. 3)...
    362 Words | 2 Pages
  • C121 Lab 4 Physical Chemical Properties
    Physical and Chemical Properties Toby Orme-Lab 4 Solubility or Reaction Substance Name Color Odor Effect of Heat Cold H2O Hot H2O Litmus Test Dilute HCl Dilute NaOH Mg Silver N/A N/A Non soluble Bubbles Basic Hot/fizz N/A Cu Copper N/A Purple then turned black Non soluble N/A N/A N/A N/A Zn Silver N/A N/A Non Soluble N/A N/A Vaporized and fizzed N/A MgO White N/A Omits gas Hazy mix Boiled Rapidly Basic Got hot and fizzed Became thick or pasty CuCO3 Green N/A Turned black Hazy Green Became...
    381 Words | 4 Pages
  • Water Imbalance - 431 Words
    Phu Pham 002815421 Water Imbalance When we talk about water imbalance, it is necessary to first know of water’s tendency to move from high concentration to low concentration. This property of water is influenced by three conditions: isotonic, hypertonic, and hypotonic. Isotonic condition exists when the concentration of the solute is the same as the concentration inside the cell. Because the concentrations are the same on both sides, there is no movement of water. In hypertonic, however, the...
    431 Words | 2 Pages
  • Herbal soap is a kind of soap mixed wit
    Herbal soap is a kind of soap mixed with natural ingredients, juice or extract and vitamins from medicinal plants, fruits and vegetables. If you’re looking for all-natural herbal soap, try making these homemade herbal soaps using akapulko, guava, papaya, calamansi, cucumber, radish, and other medicinal plants. You already have most of the ingredients in your kitchen or garden. Herbal soaps contain many of the nutrients and essential oils our skin and body needs to nourish and help strengthen...
    369 Words | 2 Pages
  • Investigate Flame Colors of Different Cations When they were heated by Fire
    Investigate Flame Colors of Different Cations When they were heated by Fire. & Testing changes of cations using sodium hydroxide (NaOH) aqueous Aims & Objectives Different characteristic cations will form different colors when they are burned or added base. In these two experiments, scientist took some sample of barium hydroxide (Ba (OH) 2·H2O), ferric chloride (FeCl3·6H2O), copper chloride (CuCl2· 2H2O), calcium chloride anhydrous (CaCl2), potassium carbonate crystal (K2CO3·...
    725 Words | 4 Pages
  • Physio Ex 9.0 Exercise 1 Activity 5
    Exercise 1: Cell Transport Mechanisms and Permeability: Activity 5: Simulating Active Transport Lab Report Pre-lab Quiz Results You scored 100% by answering 4 out of 4 questions correctly. 1. The movement of sodium and potassium maintained by the Na+ -K+ pump You correctly answered: e. requires energy and is against a concentration gradient. 2. The sodium-potassium pump is classified as a(n) You correctly answered: a. antiporter. 3. The sodium-potassium pump moves _____ sodium ions and _____...
    910 Words | 3 Pages
  • DISORDERS OF WATER BALANCE - 6691 Words
    GENERAL PRINCIPLES OF DISORDERS OF WATER BALANCE (HYPONATREMIA AND HYPERNATREMIA) AND SODIUM BALANCE (HYPOVOLEMIA AND EDEMA) Literature review current through: Sep 2013. | This topic last updated: ene 15, 2013. 1. INTRODUCTION — The plasma sodium concentration is regulated by changes in water intake and excretion, not by changes in sodium balance. hyponatremia is primarily due to the intake of water that cannot be excreted hypernatremia is primarily due to the loss of water that has...
    6,691 Words | 19 Pages
  • Experiment 4 Physical Chemical Properties
    Purpose: To investigate the chemical properties of pure chemical substances. To investigate the physical properties of pure chemical substances. Procedure: In this experiment, I will examine several physical and chemical properties of a number of elements and compounds. Student Material: 1 Matches LabPaq Materials: 1 Beaker, 100 mL, glass, 1 Burner-fuel, 1 Goggles-Safety, 1 Rod, Stirring rod – Glass, 1Test Tube(5), 13 x 100 mm in Bubble Bag, 1 Test-tube-clamp-holder, 1...
    1,114 Words | 6 Pages
  • Experiment 9 okiemute - 589 Words
     Name: Exp 9: Stoichiometry of a Precipitation Reaction Data Tables: Step 3: Show the calculation of the needed amount of Na2CO3 CaCl2.H2O(aq)= m/M =1/147 =0.0068 mol CaCO3(s)=0.0068*1/1 =0.0068 mol CaCO3 (s)= CaCO3 mol *CaCO3 g =0.0068 mol*100.01 g =0.68 g Convert moles of Na-2CO3 to grams of Na2CO3 = 0.00680 moles Na-2CO3 x 105.99g Na-2CO3 1 mole Na-2CO3 = 0.72g 0.72g of Na-2CO3 to fully react with 1g of CaCl2-.2H2O Step 4: Mass of...
    589 Words | 3 Pages
  • Stoichiometry and Limiting Reagent - 1141 Words
    Stoichiometry and Limiting Reagents Theodore A. Bieniosek I. Purpose and Theory The purpose of the experiment is to study and apply the processes of stoichiometric calculation on a controlled chemical reaction. We will be adding variable amounts of reactants in a chemical reaction in order to demonstrate the effect of limiting reagents. Based on the volumes of the reactants, and their respective molarities, we can calculate the theoretical yield of the reaction and compare it to...
    1,141 Words | 5 Pages
  • Energy Drink Lab Report
    Qualitative Chemical Analysis of Energy Drinks and Other Beverages - Lab Report Discussion and Analysis As a result of conducting various qualitative chemical analysis tests, Monster Energy ® was found to contain a large amount of reducing sugars and NaCl. It was found to be void of proteins and lipids. Further, Canada Dry ® gingerale was found to contain a large amount of reducing sugars, while being void of protein, lipids and NaCl. The components of the Monster Energy drink tested...
    804 Words | 3 Pages
  • Salt Saturation Science Fair Paper Essay Example
    Salt Saturation & How it Affects Salt Crystal Size 12/07/11 Research Question: How does the saturation of water affect the size of the salt crystals? This project was chosen because it was intriguing and to find out if more salt equals bigger crystals. Hypothesis: If the water is more saturated then the salt crystals will be bigger. The Independent Variable is the amount of salt in the water. The Dependent Variable is the size of the salt...
    1,231 Words | 4 Pages
  • Paramecium movement assignment BES108
    Paramecium movement assignment: Answer the following questions and hand in at the beginning of the next lab. 1. Describe how Paramecium moves in aquatic environments? For the paramecium to move forward, its cilia beat on an angle, backward in unison. The paramecium moves by spiraling through the water. For the paramecium to move backward, the cilia beat forward on an angle at the same time. If the paramecium runs into a solid object, the cilia changes its direction and beats forward,...
    796 Words | 3 Pages
  • Biological Importance of Group 1a-2a
    TABLE OF CONTENTS 1. IA (Alkaline Metals) 1.1. H………………………………………………………………………..2 1.2. Li………………………………………………………………………..2 1.3. Na………………………………………………………………………2 1.4. K………………………………………………………………………..3 1.5. Rb………………………………………………………………………3 1.6. Cs………………………………………………………………………3 1.7. Fr……………………………………………………………………….4 1. IIA (Alkaline Earth Metals) 2.8. Be………………………………………………………………………4 2.9. Mg………………………………………………………………………4 2.10....
    1,377 Words | 5 Pages
  • Stoichiometry Quiz - 1690 Words
    Chemistry 1: PROBLEM SET SY 2012/2013 CLASS #: _______________ NAME_________________________________________ SECTION: ______________________ Stoichiometry II - Mole Calculations/ Limiting and Excess Reagent – Lecture Notes 1. Given the balanced equation N2(g) + 3H2(g)  2NH3(g) How many moles of ammonia are produced when 0.60 mol of nitrogen reacts with hydrogen? 2. Given the equation: SiO2 + HF  SiF4 + H2O a. Calculate the number of moles HF that would completely react with 2.5 moles of...
    1,690 Words | 7 Pages
  • Chem 101 Lab 1
    Sunny Patel Chem 101 10-13-09 Introduction The objective of this lab was to show how stoichiometry is applied to a specific chemical reaction. Stoichiometry is pretty much the math behind chemistry. Doing stoichiometry can calculate masses, moles, and percents with a chemical equation. The use of stoichiometry is how we were able to find the limiting reagent in this lab. A limiting reagent is the chemical that will be used up first. Many calculations had to be made throughout this...
    397 Words | 2 Pages
  • Final Draft Lab 4
     Effects of oligomycin, ouabain, p-Aminohippurate, sodium concentrations and potassium concentrations on active transport of the Malpighian tubules of Acheta domesticus Key Words: Malpighian tubules, Acheta domesticus, PAH, ouabain, oligomycin, Na+, K+ Silvia Kilic 100488712 BIOL 3040U CRN: 70041 Thursday, March 5th, 2015. Results The Malpighian tubules were incubated in the solutions for 15 minutes before being observed. The transport of CPR into the lumen was highest when there was...
    1,166 Words | 4 Pages
  • Chemistry Experiment - 613 Words
    The members in our group were Whitney, myself, and Charlotte. The title of this lab was “reaction types.” The purpose of this lab was to identify the reaction type, balance equations, and observe the reactions .Our hypothesis was if there was many stations with fire, then they’re would be many combustion reactions. The procedure of the first lab was to place a solid piece of magnesium metal in the bottom of the smallest tube. Place this test tube in the test tube holder. Using tongs pick up the...
    613 Words | 2 Pages
  • Intro - 818 Words
    Valuable Experience Gained During the Training Period The valuable experience that I gained during the training is when we are in the furnace of the boiler where the combustion takes place. The furnace is a internal parts of the boiler so we are taking the advantage to see what’s inside the boiler. We saw the generating tubes, bunker fuel injector, grates that we need to fix because of mis-alignment of the grates base. Grate is use for de ashing to avoid clogging up of the boiler. The second...
    818 Words | 3 Pages
  • chem 2 lab 0404
    1. The use of microscale techniques does not change the hazardous nature of the reagents we use. Briefly describe the hazards associated with even small amounts of each of the following: a. concentrated hydrochloric acid, HCl HCL may be corrosive. It can cause burns to dosy tissue and can be deadly if inhaled or swallowed. b. sodium hydroxide, NaOH, solution NaOH is a very corrosive chemical and contact with it can cause burns to body tissue...
    761 Words | 4 Pages
  • Physical and Chemical Properties - 502 Words
    Physical and chemical ProPerties Physical and Chemical Properties Lab RepoRt assistant This document is not meant to be a substitute for a formal laboratory report. The Lab Report Assistant is simply a summary of the experiment’s questions, diagrams if needed, and data tables that should be addressed in a formal lab report. The intent is to facilitate students’ writing of lab reports by providing this information in an editable file which can be sent to an instructor. Substance Name Mg Cu...
    502 Words | 3 Pages
  • The Preparation of Calcium Carbonate Lab
    11/17/2011 The Preparation of Calcium Carbonate Purpose: To create chalk (calcium carbonate) and to find the percentage yield in order to see the amounts of anhydrous sodium carbonate and calcium chloride were used up. Also to see if there’s any alterations like mass differentials. Objectives: 1. To introduce the concept of “limiting factor” in a chemical reaction 2. To practice a. Writing a balanced equation b. Determining the number of moles of each reactant and...
    941 Words | 4 Pages
  • Organic Chemis - 2670 Words
    M09/4/CHEMI/HP2/ENG/TZ1/XX+ 22096108 CHEMISTRY HIGHER lEvEl PaPER 2 Monday 18 May 2009 (afternoon) 2 hours 15 minutes INSTRUCTIONS TO CANDIDATES Write your session number in the boxes above. Do not open this examination paper until instructed to do so. Section A: answer all of Section A in the spaces provided. Section B: answer two questions from Section B. Write your answers on answer sheets. Write your session number on each answer sheet, and attach them to this examination paper and...
    2,670 Words | 13 Pages
  • Calcium Carbonate - 485 Words
    Taki Simadiris p1 Brierly Post-lab a. If you did not wash all of the Calcium Carbonate out of the beaker and into the filter during step 5, would your percent yield be larger or smaller? If you do not wash all of the Calcium Carbonate out, then the percent yield would be smaller because there is enough calcium carbonate left in the beaker that would have attributed to the final yield. b. If you used tap water instead of DI water what do you think would happen? Why? If you used tap water, the...
    485 Words | 2 Pages
  • Harvesting CaCo2 in a precipitate reaction results in less grams desired amount (2 grams)
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