"Determining The Ksp Of Calcium Hydroxide Lab Report" Essays and Research Papers

  • Determining The Ksp Of Calcium Hydroxide Lab Report

    Experiment 10: Solubility Product for Calcium Hydroxide GOAL AND OVERVIEW A saturated solution of Ca(OH)2 will be made by reacting calcium metal with water, then filtering off the solids: Ca(s) + H2O → Ca(OH)2(s) Ca2+(aq) + 2OH-(aq) The concentration of dissolved hydroxide will be determined by acid-base titration with standardized HCl solution. The Ksp for Ca(OH)2 will be calculated from the experimentally determined saturation concentration of hydroxide. Objectives of the data analysis understand...

    Acid-base titration, Calcium, Calcium hydroxide 1705  Words | 5  Pages

  • Determining the Ksp of Calcium Hydroxide by Titration of Saturated Ca(Oh)2(Aq) with Hcl(Aq)

    Determining the Ksp of Calcium Hydroxide by Titration of Saturated Ca(OH)2(aq) with HCl(aq) Abstract: Titration is a technique that has been used in this experiment to identify the Ksp value of calcium hydroxide in order to determine the extent to which the compound is soluble in water. A known volume of 50 mL of hydrochloric acid, a concentration of 0.05 M hydrochloric acid, a volume of 50 mL calcium hydroxide base, an unknown...

    Base, Chemical equilibrium, Chemical reaction 2028  Words | 7  Pages

  • 17 Calcium Hydroxide Solubility JER 2

    University Of Central Lancashire Department of Forensic and Investigative Science FZ1025 Experimental Techniques in Chemistry 17. Determining the thermodynamics of calcium hydroxide solubility in water INTRODUCTION When an ionic solid is added to water the solid dissolves by dissociating into its component ions. As more and more solid is added, it will continue to dissolve until the solution becomes saturated with ions. At this point the solid is in equilibrium with its component ions in solution...

    Calcium hydroxide, Chemical equilibrium, Entropy 814  Words | 3  Pages

  • Calcium Hydroxide

    unreactive elements. What does this tell you about their electronic structures? (2) 3 When calcium carbonate is heated it decomposes. The equation for this reaction is: CaCO3 → CaO + CO2 a Use numbers from the list to complete the sentences. 2 3 4 5 6 i The number of products in the equation is ....... (1) ii The formula CaCO3 shows that calcium carbonate was made from ....... different elements. iii The equation is balanced because there...

    Calcium carbonate, Carbon dioxide, Chlorine 846  Words | 5  Pages

  • Ksp Document

    Determining the Ksp of Calcium Hydroxide Calcium hydroxide is an ionic solid that is sparingly soluble in water. A saturated, aqueous, solution of Ca(OH)2 is represented in equation form as shown below. Ca(OH)2 (s) ↔ Ca2+ (aq) + 2OH– (aq) The solubility product expression describes, in mathematical terms, the equilibrium that is established between the solid substance and its dissolved ions in an aqueous system. The equilibrium expression for calcium hydroxide is shown below. Ksp = [Ca2+][OH–]2 ...

    Burette, Hydrochloric acid, PH 950  Words | 4  Pages

  • Determination of the Solubility of Calcium Hydroxide

    Solubility of Calcium Hydroxide Apparatus * Solid calcium hydroxide * 0.4 mol/dm hydrochloric acid * Distilled water * Pipette * Triple valve rubber pipette filler * Conical flask * Beaker * White tile * Clamp and stand * Methyl orange indicator Producing the calcium hydroxide solution 1. Roughly fill a beaker with 200cm³ of distilled water. This does not need to be accurate because samples will be taken from this. 2. Add solid calcium hydroxide, a spatula...

    Calcium carbonate, Calcium hydroxide, Hydronium 1186  Words | 6  Pages

  • The Solubility of Calcium Hydroxide

    The solubility of calcium hydroxide Aim: to find out the solubility of a substance that only partially dissolves in water. Method: place about 100cm3 of distilled water in a flask and add about one spatula of solid calcium hydroxide. Stopper the flask and shake well for one minute. Leave to stand for at least 24 hours. Titrate 10cm3 samples against 0.05 mol dm-3 hydrochloric acid solution using methyl orange as an indicator. Obtain enough results to calculate an accurate average, and then...

    Base, Calcium carbonate, Calcium hydroxide 611  Words | 3  Pages

  • Lab Report

    limestone which is predominantly calcium carbonate. Different soil types behave differently hence there is the need to test for acidity. To raise the pH and lower the acidity or sweeten the soil, lime is added. Agricultural lime or garden lime is made from pulverized limestone or chalk. Some types of garden lime are dolomite lime, quicklime and slaked lime. Calcium carbonate occurs in nature as limestone...

    Calcium, Calcium carbonate, Calcium hydroxide 862  Words | 4  Pages

  • Determination of the Solubility Product Constant of Calcium Hydroxide

    Determination of the Solubility Product Constant of Calcium Hydroxide Introduction The equilibrium constant for the solubility equilibrium between an ionic solid and its ions is called solubility constant [1] , Ksp of the solute. For example, the solubility product is defined by MxAy(s) ⇋xM(aq)y++ yA(aq)x- (1) Where M is the metal cation, A is the anion, x and y are the corresponding charges of the ions. The equilibrium expression is Ksp=[MY+]x[AX-]Y (2) In the example...

    Chemical equilibrium, Chemistry, Common-ion effect 1103  Words | 5  Pages

  • The Kps Calculated Could Be Be Different Due To Temperature The Theoceration Ksp Was Obtained At Room Temperature

     Calcium hydroxide is a soluble ionic solid that dissolves into hydroxide and calcium ions. The solubility product constant(KSP) describes the equilibrium that is established between Calcium hydroxied and its dissolved ions in an aqueous system. Every substance that forms a saturated solution will have a solubility product constant which can be obtained from scientific tables (theorical value). Value Also, experiments could be conducted to determine the solubility product constant of soluble...

    Calcium carbonate, Chemistry, Ionic bond 473  Words | 2  Pages

  • lab report

    as sand are formed from physical combination of various substances, and are called mixtures. Mixtures can be classified into homogeneous and heterogeneous. The purpose of this lab is to learn how to separate individual components from a mixture through decantation, filtration, distillation, and crystallization. Pre-Lab Questions: Attached Apparatus and Supplies: • Electronic balance • 50 mL beaker • 100 mL beaker • 10x75 mm test tubes • Funnel • Hot plate • Glass rod • Filter paper ...

    Acid, Calcium carbonate, Carbon dioxide 634  Words | 3  Pages

  • Lab Report

    Name: Daphnie B. Sarmiento Year / Section: II year – St. Augustine Group Name: Friday Cleaners LABORATORY REPORT INTRODUCTION Litmus paper is an acidic based paper. And it is made up of paper and it obtains a proper pH reading. The p in pH stands for potential. The term is potential of hydrogen or pH, which simply means the potential of something attracting hydrogen ions to itself. PH also is referred to as acid/alkaline balance. Acid are liquids with acidic properties. The paper turns...

    Acid, Base, Hydrogen ion 1033  Words | 4  Pages

  • Lab Report

    calcium nitrate sodium carbonate. Safety notes: 1. Wear aprons and goggles. Protective gloves are also available. 2.Carefully read the labels of all chemicals before use. Abide by specific warnings and directions. 3. Collect all materials needed for a procedure before proceeding. 4. Perform reactions under the hood when directed. Chemicals may be weighed and prepared at balance or lab tables, but tests should be carried out under...

    Chemical reaction, Chemistry, Chlorine 629  Words | 3  Pages

  • Determination of the Solubility Product Constant of Calcium Hydroxide

    DETERMINATION OF THE SOLUBILITY PRODUCT CONSTANT OF CALCIUM HYDROXIDE ABSTRACT This experiment aimed to determine the solubility product constant (Ksp) of Ca(OH)2 as well as to evaluate the effects of common and non-common ions on its solubility. Ca(OH)2 solids were dissolved in eight various media: distilled water, 1.0 M KCl, 0.5 M KCl, 0.1 M KCl, 0.05 M KCl, 0.005 M KCl, 0.001 M KCl, and 0.1 M Ca(NO3)2. The concentration of dissociated OH- concentrations was determined by means of titrimetric...

    Chemical equilibrium, Chemistry, Common-ion effect 2848  Words | 7  Pages

  • Titration of Calcium HydroxideG

    Calcium Hydroxide Titrated with Hydrochloric Acid By: Juliana Kadiasi Signature__________________________________________ (Experimental team: Ashley Tsao, Sophie Alvarez, Catherine Hering) IB Chemistry HL B3 For: Mr. Ahmed. Belmir 15 September 2014 Criteria Aspect IA IA Total Design 1. Identified Problem & relevant variables 2. Procedure controls variables 3. Procedure & relevant sufficient data Data Collection & Processing 1. Precise & accurate...

    Calcium hydroxide, Chlorine, Concentration 1146  Words | 5  Pages

  • Lab #3 Solubility Product of Ca OH 2

    Aim: To find the solubility and the solubility product of calcium hydroxide. Theory: Define, with equation, the solubility product. Find, from literature, the solubility product of calcium hydroxide at 25oC. Experimental: Reagents: solid calcium hydroxide, water, 0.1 moldm-3 hydrochloric acid Apparatus: Procedure: 1. An empty bottle was weighed. Then the empty bottle was weigh with 1g calcium hydroxide. 2. 100 cm3 of distilled water was added to the bottle. For about one minute...

    Calcium carbonate, Calcium hydroxide, Chemistry 518  Words | 3  Pages

  • Ksp of Ca(Oh)2

    Introduction: Calcium hydroxide is a soft white caustic powder used in making mortar, cements, calcium salts, paints, and petrochemicals. It is also used in saltwater aquaria to make up kalkwasser/limewater solutions for reef tanks, and is used as a pH regulating agent. Notice that calcium hydroxide is divalent and thus has twice the neutralizing power as molecules like NaOH that are monovalent. A Calcium Hydroxide Molecule: Calcium hydroxide is manufactured industrially by adding...

    Base, Calcium hydroxide, Chemical equation 1963  Words | 8  Pages

  • Condumetric and Gravemetric Lab Report

    Titration and Gravimetric Determination of a Precipitate Objective: * Measure the conductivity of the reaction between sulfuric acid and barium hydroxide * use conductivity values to determine equivalence point * measure mass of a product to determine equivalence point gravimetrically * calculate molar concentration of barium hydroxide solution Procedure: * First, combine 10.0 mL of the Ba(OH)2 solution with 50 mL of distilled water. Then, measure out 60 mL of 0.100 M H2SO4....

    Amount of substance, Concentration, Equivalence point 602  Words | 3  Pages

  • Lab Report

    Lab Report: Halogen Reactions Purpose: This experiment will allow for exploration into some of the properties of Group 17 elements (halogens) and their compounds. More specifically, the solubility properties of these halogens will be used to predict their reactions. The relative electronegativities of the halogens will be determined. Halides,such as Cl-, Br-, and I- will be used to make these determinations. Because this lab is qualitative rather than quantitative, there are no calculation...

    Bromine, Chlorine, Electronegativity 621  Words | 3  Pages

  • Lab Report

    Chem 105 Guide to the Formal Laboratory Report The purpose of a formal report is to communicate effectively to another person the goal, procedure, data analysis method, and results of your laboratory work. The report is divided into several well-defined sections. Each section must be present in a complete report. To earn an outcome point for the laboratory report, a student must submit a formal lab report that earns a score of at least 90/100. Each error (factual, grammatical, typographical...

    Chemistry, Erlenmeyer flask, Error 1317  Words | 5  Pages

  • Lab Report on Separating and Determining the Mass of Calcium Ion in a Calcium-Enriched Tablet

    Experiment 3: Separating and Determining the Mass of Calcium Ion in a Calcium-Enriched Tablet In this lab, we dissolved a calcium-enriched tablet and participate the calcium ion as calcium carbonate. Our purpose is to determine the masses of calcium carbonate and calcium ion, to determine the mass percent of calcium ion in the tablet and to compare the masses and the percent with the listed tablet ingredients. This time we used a 150mL beaker, analytical balance, forceps, a 50mL graduated cylinder...

    Calcium carbonate, Chlorine, Filter paper 460  Words | 2  Pages

  • LAB REPORT

    Institute Physics Course 2014 - Rocket Lab Report Title: RockSim and Electronic Altimeter Measurement Techniques Name: Scarlet Henriquez Email: scarletpatricia94@aol.com LAB SESSION ___8____Assignment _____7_____ Due Date: ___7/8/14______ Objective: Launch a smaller rocket to learn how to compare RockSim predictions (computer based) to an actual instrument measurement carried by the rocket (Electronic Altimeter). This Lab shows how better the electronic measurement...

    Aircraft, Altimeter, Calculation 401  Words | 8  Pages

  • Chemistry Lab Report

    Chemistry Lab Report   Jeffrey Kenneth Bangero             Introduction  Firstly we calculated the mass of the beaker and then we put the assigned grams of sodium carbonate and calcium chloride. Then we add 50 ml of distilled water to each substance, sodium carbonate dissolved faster than calcium carbonate. After we mixed both sodium carbonate and calcium chloride and they form a solid precipitate. Then we poured it a funnel with a filter paper to get the solid precipitate. Purpose  ● The purposed...

    Calcium, Filter paper, Laboratory glassware 590  Words | 3  Pages

  • Standardization Chemistry Lab Report

    Standardization of Solution and Titration Lab Report, Preparing a Dilute HCl Solution from a Concentrated One Titrating NAOH Solution with HCl Solution (of Known Concentration) Chemistry lab report(by abdazino abdalla) International College Objective preparing a dilute HCl solution from a concentrated one titrating NAOH solution with HCl solution (of known concentration) Procedure Section A: Preparation of 100.0cm3 0.480 mol/dm3 HCl solution a)Determine the volume of the concentrated acid...

    Acid, Base, Chlorine 1101  Words | 4  Pages

  • lab reports

    Writing Laboratory Reports Lab reports for Biology may seem different than other classes you have taken. As you progress further in science, you will see variations in styles of lab reports, though they all contain the same basic principles. Lab report sections are as follows: Cover Page Introduction Objective Materials and Procedures Results/Data Conclusions Works Cited **Not every lab report will contain every section. I will give you specific instructions for each lab write-up** ...

    Scientific method 1210  Words | 5  Pages

  • Lab Report

    # Now You See It – Copper Cycle Lab The purpose of the lab is to discover what happens when someone executes a series of procedures, beginning with copper metal. What is done | What is observed | 1. Started with copper, Cu (s). | reddish, brownish, orange-ish, powder-like | 2. Added nitric acid, HNO3 (aq). | acid turns blue and smells like chlorine. | 3. Added water, H2O (l). | stayed the same | 4. Added sodium hydroxide, NaOH (aq). | changed consistency, gel-like | 5. Heated the...

    Ammonia, Copper, Copper(II) sulfate 760  Words | 3  Pages

  • Chemical Equations Lab Report

    Chemical Reactions I. Purpose – The purpose of this lab was to observe different type of chemical reactions to write and balance chemical equations. II. Hypothesis: If you mix two chemicals together, then they will change color and/or bubble/fix. III. Procedure - Workstation 1: 1. Light the Bunsen Burner 2. Add 5 – 8 mL of HCL to a test tube that’s in the test tube rack 3. Drop a 2 – cm piece of Mg ribbon into the test tube 4. Record Observations 5. Clean Workstation ...

    Chemical reaction, Chemical substance, Chemistry 734  Words | 5  Pages

  • Lab Report

     The Periodic Law Lab Objectives: 1. To determine the solubilities of certain salts of Group 2A elements. 2. To predict the solubility of an unknown Group 2A salt based on the determinations made. Materials: a. .1M Magnesium Nitrate Mg(NO3)2 b. .1M Calcium Nitrate Ca(NO3)2 c. .1M Strontium Nitrate Sr(NO3)2 d. .1M Barium Nitrate Ba(NO3)2 e. .25M Ammonium Oxalate (NH4)2C2O4 f. 1M Sulfuric Acid H2SO4 g. 1M Sodium Carbonate Na2CO3 h. 1M Potassium Chromate K2CrO4 i. Unknown solution ...

    Alkaline earth metal, Calcium, Chemical element 662  Words | 6  Pages

  • lab report

    CHM1032L pre/post lab instructions Preparation is a key to success in this lab. For this reason, you are required to thoroughly read through the experiment information presented in the lab manual, and complete a pre-lab for each experiment you do. The prelab must be completed prior to the day of the experiment. Each Friday I will ask to see your completed prelab before I allow you to enter the lab. If you have not finished the pre-lab, I will not allow you to enter the lab and you will receive...

    Experiment, Laboratory, Logic 1036  Words | 4  Pages

  • Lab Reports

    lab reports becca Medina Biology Lab 1107 Lab Notebook The Scientific Method Problem: Will a male or female have a higher heart rate after participating in the physical activity of running up three floors of a building? Both students are involved in sports that require physical activity. Hypothesis: We believe that the male would have a lower heart rate after running up the stairs determining that he is in better shape. Materials/Methods: The two students will both run up the same number...

    Carbon dioxide, Cell nucleus, Eukaryote 1091  Words | 4  Pages

  • Lab Report

    (1999). Flow measuring experiment. http://fetweb.ju.edu.jo/ME/courses/labs/measurements/labsheet/Experiment%20No%203%20flow%20measurements.pdf Anonymous, (2013). Head loss in piping system. Pentair LTD. http://www.hydromatic.com/ResidentialPage_techinfopage_headloss.aspx ABSTRACT This experiment involves the measuring of fluid flow using various devices such as venturi meter, orifice meter and also rotameter and determining the best device to measure the flow of fluid. Head loss, which is...

    Bernoulli's principle, Choked flow, Fluid dynamics 1380  Words | 6  Pages

  • Lab Report

    LAB REPORT FOR EXPERIMENT 3 COPPER CYCLE OLANREWAJU OYINDAMOLA TUESDAY 27TH February 2013 Abstract This experiment is based on copper, to synthesize some copper compound using Copper (II) nitrate solution to obtain copper metal at the end. Changes of copper complexes when various are added and filtering out the precipitate by using Buchner funnel for vacuum filtration .The experiment started with preparation of copper (II) hydroxide and addition of copper oxide then addition of droplets...

    Chemistry, Concentration, Copper 839  Words | 4  Pages

  • Lab Experiment: Determining Perimeter

    Determining Perimeter, Area of a Standard Paper Sheet, Determining Minimum Reaction Time, Uncertainty and Their Propagations Abstract: We conducted two experiments aimed at learning data collection, presentation, interpretation, experimental uncertainties along with their propagation, writing of a scientific report, determination of perimeter, area of a standard printing paper sheet, and determining human reaction times – individual, group and class. Here are our results; perimeter, P=99.20+/-0...

    Average, Classical mechanics, General relativity 868  Words | 3  Pages

  • lab report

     Identifying Unknown Enterobacteriaceae Sample with API 20-E Test Abstract: The API System test conducted in class was used to analyze the unknown species procured from lab. The sample collected was extracted from intestinal region. The API rapid identification test, which consists of 20 microtubules, permitted the class to investigate a bacteria belonging to the Enterobacteriaceae family. Each microtubule examines a specific attribute of the bacteria, organizing it into a dichotomy...

    Bacteria, Clostridium difficile, Escherichia coli 1541  Words | 9  Pages

  • Lab Report

    Year 11 Lab Report Template Experiment – Modelling A. Title • A brief concise descriptive title B. Aim • What are you trying to find out? • What do you want to learn? C. Hypothesis • Write a possible solution to the problem. • If ………………………………………………………………………………………….then ………………………………………………………………………………………………………. • Make sure the above statement is testable. • The Independent variable is …………………………………………………….. ...

    Control, Experiment, Hypothesis 399  Words | 3  Pages

  • Lab Report

    Lab 20: Flame Tests Purpose/Objective: The ground state is the normal electron configuration of atoms or ions in an element. When atoms or ions in ground state are heated to a higher temperature, some electrons absorb enough energy to move them to higher energy levels. This is known as the excited state. However, the excited configuration is unstable, and the electrons must return back to their positions in the lower energy level. As they return, the energy that was previously absorbed is now emitted...

    Atom, Atomic orbital, Electron 1271  Words | 4  Pages

  • Kidney Stone Lab Report

    is too high of a concentration of salts and proteins and this makes the metals precipitate into solid form within the kidney. Kidney stones are not all the same chemically, as shown in figure 2, Calcium stones are probably the most common stone which can combine to make Calcium Oxalate (CaC2O4), Calcium Phosphate (Ca3(PO4)2), Uric Acid (C5H4N4O3), Struvite (NH4MgPO4). Figure 2. Frequency of Kidney Stones. Data from “Kidney Stone Disease.” The fact that there are differing chemicals that make up...

    Calcium, Calcium oxalate, Kidney 1693  Words | 8  Pages

  • Lab Report

    McLean 1 Creating Acetylene Gas Introduction The purpose of the lab was to determine the ratio of air to acetylene results in complete combustion of acetylene gas. The balanced chemical equation for this experiment was C2H2(g) + O2(g) --> CO2(g)+ H2O(l). Complete combustion is the reaction of an element or compound with oxygen to produce the most common oxides and energy. Complete combustion occurs when the fuel and oxygen combine in exact proportions to completely burn the fuel...

    Acetylene, Combustion, Gas 657  Words | 3  Pages

  • Lab Report

    INTRODUCTION: In this laboratory exercise explore the differences of microorganism and continue our use of specialized media and use some biochemical testing.This report discloses the basic laboratory instruments will be used in each of our practices .It is of great importance to recognize and identify the different instruments and laboratory tools, because in this way will we be able to use them properly and also to call them by name and know why. Listen Read phonetically   Dictionary - View...

    Bacteria, Gram staining, Metabolism 527  Words | 4  Pages

  • Lab Report-

    Student's Name Date of Experiment- 11/27/12 Date Report Submitted 11/27/12 Title: Caloric Content of Food Purpose: to be able to measure the energy content of foods Procedure: We are going to take food items and burn them to heat water to be able to determine the amount of “energy” a food source can emit. Data Tables: |Data Table 1: Food Item - Observations ...

    Carbon dioxide, Energy, Heat 456  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 product ...

    Calcium, Calcium carbonate, Calcium chloride 941  Words | 4  Pages

  • Lab Report

    Lab Report: Stoichiometry Lab Oct. 27, 2011 Claire Elizabeth Lab Partners: Hannah Signature:___________________ Introduction- Baking soda and vinegar are two common materials found in almost every household. That, plus the fact that all the starting and finishing materials are non hazardous and safe, is why this is one of the first chemical reactions that many people are exposed to The purpose of this experiment tests which of the two reactants (vinegar and baking soda) is the limited...

    Acetic acid, Chemical reaction, Force 579  Words | 3  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. The...

    Magnesium, Magnesium hydroxide, Magnesium nitride 856  Words | 7  Pages

  • Acid and Base Report Qualitative Data

    Acids and Bases Labs Report Aim: To study the characteristics of acids and bases. Experiment 1 Magnesium Ribbon with Sulphuric Acid |Observations | |Material/substance |Rate of reaction |Bubbles |Initial colour |Final colour |Other Observations | |H2SO4 |N/A |N/A |Colourless...

    Ammonia, Carbon dioxide, Chlorine 459  Words | 4  Pages

  • Lab Report

    Title Cricket Chirp Rate Lab The Effects of Atmospheric Pressure By Abigail Charpentier E Block Date October 2, 2013 Objective The objective of this study is to determine which environmental factors influence the rate of how fast a cricket chirps, to review and practice the steps of the scientific method, to learn how to use an online computer simulation https://www.gc.maricopa.edu/biology/glacier/scientific_method/ to review and practice constructing data charts and graphs...

    Atmospheric pressure, Chirp, Chirp rate 287  Words | 3  Pages

  • Lab Report

    Microbiology-2460 Lab-003 March 31,2008 Lab Report-Escherichia coli Abstract The purpose for this lab report was to identify and inform of an unknown bacteria that has been causing a patient to have lower abdominal and pelvic pain. To obtain the identification of this unknown bacterium, several biochemical tests needed to be performed in order to prescribe the correct medication to treat and cure the symptoms. Introduction In a lab today, I am to identify an unknown bacterium that is...

    Bacteria, Enterobacteriaceae, Escherichia coli 1053  Words | 4  Pages

  • lab report

     Lab Report: Scientific Method Your Name: Taylah Harness Purpose of this Lab What is the goal of this lab? What question is it trying to answer, or what problem is it trying to explain? The goal for this lab is to be able to get the boiling water's temperature to increase by adding table salt. The problem it is trying to explain is, how does table salt affect the boiling temperature of water? does it increase or decrease? or does it stay the same? Hypothesis After reading the...

    Boiling, Boiling point, Celsius 962  Words | 5  Pages

  • Lab Report

    10/24/2013 LAB TITLE: Single Replacement Reaction of Solid Copper with Silver Nitrate PURPOSE The purpose of this lab is to: • Observe a single replacement reaction, and • Calculate the mole ratio of silver (Ag) to copper (Cu) in the reaction MATERIALS • Copper wire (30 cm) • Large test tube • 250 ml beaker • Silver nitrate (AgNO3) powder • Dilute AgNO3 solution • Distilled water • Electronic balance • Glass stir rod • Watch glass PRE-LAB DISCUSSION A single...

    Chemical reaction, Chemistry, Copper 711  Words | 4  Pages

  • Lab Report

    LAB Report #3 Introduction: In this lab we have focus on Isolation of bacteria from environment. Microorganisms are found throughout the environment: in the air and water; on the surface of any object such as clothes, walls, furniture; in soil and dust; and on and in our own bodies (skin and mucous membranes). In order to demonstrate the ubiquity and diversity of microbes in the environment, samples from immediate areas of the environment and/or from your body will be obtained and cultured...

    Agar plate, Bacteria, Growth medium 794  Words | 3  Pages

  • Lab Report

    MEC 325/580 Lab Report CNC Machining Lab Report Date: March 18, 2013 Group Leader: Jian Wu Team Members: Group Number: G4 Regment No.: D Insturctor: CONTENTS 1.Objective and introduction. 2.Principles and practice. 3.Design and result. 4.Conclusion and recommendations. Appendices 1. Objective and introduction * Objectives Operate the CNC milling machine using G-codes, M-codes in a CNC program. * Equipment: Minitech CNC machine (Series 2) * Machine...

    Electrical discharge machining, G-code, Machine tool 1099  Words | 4  Pages

  • Lab Report

    Lab Report: Toothpickase and Enzymes September 19, 2012 Olivia DePhillips Lab Partner: Joy Morgan Meyers Signature: Introduction Enzymes are biological molecules that catalyze chemical reactions. In enzymatic reactions, the molecules at the beginning of the process, called substrates, are converted into different molecules, called products. Almost all chemical reactions in a biological cell need enzymes in order to occur at rates sufficient for life. Like all catalysts, enzymes work...

    Activation energy, Catalysis, Chemical equilibrium 1017  Words | 4  Pages

  • Class Action Lab Report

    Joseph Sulaiman Alya Abourezk 4/13/12-4/14/12 Class Action Lab Report Purpose: To determine, through observations, the identity of substances produced in a chemical reaction. Materials: Safety Goggles Stirring rod Magnesium ribbon Solid CuSO4•H2O Matches Test tubes Copper metal 3M HCl Red and blue litmus strips 0.1M AgNO3 Zinc metal 0.1M Pb(NO3)2 Test tube holder 0.1M KI Bunsen burner 0.1M Na2NO3 Crucible tongs 1.0M NaOH Water (H2O) 0.1M Ca(NO3)2 50mL beaker...

    Catalysis, Chemical reaction, Chemical reactions 1112  Words | 4  Pages

  • lab report

    Erin Arroyo  Lab report June 11, 2013 Biology 123 Professor K Title: Scientific Investigation of the Peroxidase Enzyme & Temperature Abstract:  In this lab we tested the effect temperature has on the rate of enzyme activity. The way we figured this out was by taking four different temperatures and testing the different absorbance levels they produced every 20 seconds for two minutes straight using a spectrophotometer. The important part of this experiment was the temperature...

    Catalysis, Chemical reaction, Chemistry 1725  Words | 8  Pages

  • How to Write a Lab Report

    listed. Where did the specimen come from, and what methods were used to identify it? Be specific, but do not re write the lab manual. One way is to mention the names of the materials used and reference the lab manual for the procedure or method and then continue to elaborate when necessary. See example 1. Example 1: "An unknown labeled as letter G was given out by the lab instructor. The methods that have been learned thus far for identifying bacteria have been applied to this unknown. Procedures...

    Bacteria, Enterobacteria, Enterobacteriaceae 1296  Words | 6  Pages

  • Reacting Acids and Bases Lab Report

    Reacting Acids and Bases Lab Report Introduction Every liquid, except for distilled water, has either acidic or basic traits. An acid is sour tasting, and gives a sharp stinging pain in a cut or wound, and bases taste bitter, and feel slippery. A pH scale is used to determine what traits a liquid has; acidic or basic. The scale focuses on OH- (hydroxide ions) and H+ (hydrogen ions). The scale goes from 0 to 14. 7 is distilled water, as it is directly in the middle; neither acidic or basic. Acids...

    Acid, Base, Chlorine 716  Words | 3  Pages

  • Gravimetric Determination of Calcium

    Gravimetric Determination of Calcium ABSTRACT Determining the mass of a pure compound is a method of a gravimetric analysis. One of the gravimetric analyses is the precipitation; it is a method of separating the analyte from the unknown sample as a precipitate where it will be filtered and converted into a known composition that can be weighed to determine its mass (Skoog et al, 2013). Determining the mass of calcium by using gravimetric analysis was the objective of the experiment. A 25 mL...

    Analytical chemistry, Calcium oxalate, Filter paper 1401  Words | 4  Pages

  • Dehydration Lab Report

    group resulting in the formation of a double bond between two carbons. For the experiment we used 2-Methylcyclohexanol as a beginning reagent to dehydrate and possibly form 3-methylcyclohexene, 1-methylcyclohexene, or methylenecyclohexane. Drierite® (Calcium Sulfate) was used as a drying agent to help break the alcohol and hydrogen groups from the carbons. Concentrated phosphoric acid was used as a catalyst to help move the reaction towards the products motioned above. To determine the successfulness...

    Chemical reaction, Chemistry, Gas 821  Words | 3  Pages

  • Lab Report

    using Copper Chloride, Aluminum foil, and Distilled water. Before the Aluminum was added into the Copper Chloride was turquoise. As we added the Aluminum the color changed to green and the water boiled. So we met the purpose of this lab. Purpose: The purpose of this lab was to learn how qualitative and quantitative observations of a chemical reaction are used to formulate a hypothesis. Background: Before doing any experience we had to observe all of the chemicals that were given to us. An observation...

    Chemical reaction, Chemistry, Hypothesis 685  Words | 3  Pages

  • Sample-Formal-Lab Report

    TENS 2146 Electric Devices and Measurements Lab 3 Current and Voltage This report was prepared by: L. Wall Fall 2009 Prof. R. Alba-Flores Team Members: J. White, L. Wall Conducted on: September 17, 2009 Submitted on : September 24, 2009 Abstract: In this lab students experimented with light emitting diodes. The student built a basic circuit with two LED's and resistors in parallel. The results showed that the voltage is the same in parallel. The items that were in series had...

    Electric current, Electrical impedance, Electrical resistance 1523  Words | 6  Pages

  • Lab Report

    Chemistry Lab Report Water Hydration Introduction: A hydrated crystal or hydrated occurs when water becomes tightly attracted to a metal salt base on it’s polarity. The water molecules maintain integrity as molecules, however they are considered to be part of the formula of the hydrate. When the hydrate metal salt crystal is heated, the attractions to the water are broken by the heat energy and the water escape from the crystal. After heating the salt crystal is called as anhydrous, which...

    Evaporation, Heat, Hydrate 1100  Words | 5  Pages

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