• Heats of Reaction Lab Report
    Heats of Reaction Lab Report Purpose: To measure the heats of reaction for three related exothermic reactions and to verify Hess’s Law of Heat Summation. NaOH(s) ( Na+(aq) + OH-(aq) ΔH = -10.6kcal/mol NaOH(s) + H+(aq) + Cl-(aq) ( H2O + Na+(aq) + Cl-(aq) ΔH = -23.9kcal/mol Na+(aq
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  • Kinetics of a Reaction Lab Report
    Kinetics of a Reaction I. List of reagents & products 1. 1.0 M Copper(II) nitrate (Cu(NO3)2, 0.10 M Hydrochloric Acid (HCl), 0.010 M Potassium Iodide (KI), 0.040 M Potassium Bromate (KBrO3), 0.0010 M Sodium Thiosulfate (N2S2O3), 2% Starch solution, Water (H2O) II. Summary of P
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  • Enthalpy change of reaction
    Introduction: Thermochemistry is the branch of chemistry that studies the energy and heat associated with chemical reactions and/or physical transformations. A reaction may release or absorb energy, and a phase may change, such as in melting and boiling. Thermochemistry focuses on these...
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  • Determination of the Enthalpy of Reaction of a Monobasic Acid with Sodium Hydroxide
    Title : Expt.1 Determination of the enthalpy (heat) of reaction of a monobasic acid with sodium hydroxide Experiment no : 1 Experiment title : Determination of the enthalpy (heat) of reaction of a monobasic acid with sodium hydroxide Objectives: 1) To understand the enthalpy chemistr
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  • Chemical Reaction of Solution Lab Report
    CHEMICAL REACTIONS OF COPPER AND PERCENT YIELD Objective To gain familiarity with basic laboratory procedures, some chemistry of a typical transition element, and the concept of percent yield. Apparatus and Chemicals  |0.5 g piece of no. 16 or no. 18 copper wire |evaporating d
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  • Calculation on the Molar Enthalpy Change of a Neutralization Reaction
    Calculation on the molar enthalpy change of a neutralization reaction Principle H2SO4(aq)+2NaOH(aq)=Na2SO4(aq)+2H2O(l) The reaction is a exothermic reaction, when the heat released by it is absorbed by water, the temperature of the water increases. The heat produced by the reaction can be calculate
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  • Enthalpy of Reactants Lab Report
    Tara Keller Finding the Ratio of Moles of Reactants in a Chemical Reaction 9/6/13 Introduction The purposes of this lab are to measure the temperature change of the reaction between solutions of sodium hydroxide and phosphoric acid, calculate the enthalpy, H, of neutralization of...
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  • Evaluating an Enthalpy Change That Cannot Be Measured Directly.
    Evaluating An Enthalpy Change That Cannot Be Measured Directly. Dr. Watson. Introduction. We were told that sodium hydrogencarbonate decomposes on heating to give sodium carbonate, water and carbon dioxide as shown in the equation below:- 2NaHCO3(s)--------> Na2CO3 (s) + H2O (l) + CO2 (g)
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  • Chemistry Rates of Reaction Coursework: Sodium Thiosulphate and Hydrochloric Acid
    An investigation to show how the rate of reaction between hydrochloric acid and sodium thiosulphate is affected by the concentration of the acid Simple Procedure Place a conical flask on a piece of paper with a cross on it. Add hydrochloric acid and sodium thiosulphate, and record the amount of
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  • Unknown Lab Report
    Unknown Lab Report April 25th, 2006 Introduction The purpose of this lab was to identify two unknown bacteria cultures using various differential tests. The identification of these unknown cultures was accomplished by separating and differentiating possible bacteria based on specific biochemi
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  • Enthalpy Change of Cumbustion of Calcium Carbonates
    Plan Equipment  2.54g of Caco3  2.53g of Cao  2.0 mol dm-3 hydrochloric acid  Scale  50cm3 measuring cylinder  Thermometer  Polystyrene cup  Weighing bottle Method I. I will weigh a weighing bottle containing 2.53g of calcium carbonate II. Using a measuring cylin
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  • Organic Chemistry Lab Report
    CHEM 2123 and 2125 – Organic Chemistry Lab I and II GUIDELINES FOR WRITING LAB REPORTS INTRODUCTION Writing reports in organic chemistry lab may differ from the way it’s done in general chemistry. One goal of this course is to introduce you to the record keeping methods used in research labs
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  • 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:
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  • Lab Report
    Introduction The mole is a convenient unit for analyzing chemical reactions. Avogadro’s number is equal to the mole. The mass of a mole of any compound or element is the mass in grams that corresponds to the molecular formula, also known as the atomic mass. In this experiment, you will observe th
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  • Standardization Chemistry Lab Report
    JOMO KENYATTA UNIVERSITY OF AGRICULTURE AND TECHNOLOGY DEPT: CIVIL ENGINEERING UNIT: CHEMISTRY 1 (SCH 2109) PRACTICAL REPORT EXPT 2: Standardization and Determination of Concentration of Hydrochloric Acid in a Given Solution by ARAKA BRAMWEL MBOGO EN251-0221/2010 TITLE: STANDARDI
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  • Reaction Lab
    Introduction: The purpose of this experiment was to classify different kinds of reactions and see their results. In this experiment, various reactions were made and observed. There are several different ways to know if a chemical reaction occurred. Firstly, if there is a temperature change, shown
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  • Microbiology Lab Report
    1. Title: The Process of Determining the Unknown Bacteria #9 Rachel Judecki July 5, 2011 2. Introduction: Each student was given unknown bacteria and was instructed to perform a variety of experimental tests that would help to identify their bacteria. During the process of identificati
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  • Lab Report for Food Test
    INTRODUCTION: Carbohydrates are the product that made up from carbon, hydrogen and oxygen. Carbohydrates are form by the combination of carbon dioxide and water molecules. The carbohydrates contain two specific functional group in it which is the hydroxyl groups and carbonyl gr
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  • Penny Lab Report
    IB Chemistry Experiment 4 Composition of a Post-1983 Penny Lab Report Background: Through the use of percent composition one can easily find out how much of a certain element is in a compound or an item such as a post-1983 penny. The experiment will be using HCl a strong acid to dissolve all t
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  • Ph Lab Report
    The different methods of measuring acids and bases in a solution By Starsky Intro to Biology September 26, 2011 Lab Partners: Kristen, Tania and Betty Introduction When using di
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