Experiment 12: Calorimetry and Hess’s Law Purpose: The purpose of this lab is to determine the enthalpy of reaction for the burning of one mole of magnesium in oxygen. Although the reaction is exothermic‚ the ∆HRXN will be determined by using calorimetry and then using Hess’s Law to manipulate the data collected to yield the answer needed. Procedures: Dillon‚ Stephanie. “ Calorimetry and Hess’s Law.” Laboratory Manual. Pearson Publishing‚ 2012‚ pp.168-177. Data and Results Part A
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Writing an Organic Chemistry Lab Report Components of a Laboratory Notebook The following components should be contained for each experiment‚ along with any additional material required by your instructor. • Title and date • Introduction (purpose‚ reaction) • Physical data (including calculations) • Procedure outline • Data and observations • Discussion of results (conclusions) Prelab Title and Date Give the title of the experiment and the date on which
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The trouble with always trying to preserve the health of the body is that it is so difficult to do without destroying the health of the mind. ~G.K. Chesterton There’s lots of people in this world who spend so much time watching their health that they haven’t the time to enjoy it. ~Josh Billings The greatest wealth is health. ~Virgil I reckon being ill as one of the great pleasures of life‚ provided one is not too ill and is not obliged to work till one is better. ~Samuel Butler‚ The
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Health and Safety at Work Act 1974 Before 1974 approximately 8 million employees had no legal safety protection at work. The Health and Safety at Work Act 1974 provides the legal framework to promote‚ stimulate and encourage high standards of health and safety in places of work. It protects employees and the public from work activities. Everyone has a duty to comply with the Act‚ including employers‚ employees‚ trainees‚ self-employed‚ manufacturers‚ suppliers‚ designers‚ importers of work equipment
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Katerina Baeza Hernandez | | | | | | | |Zn |Mg |Cu |Pb | | |(+) clear liquid but the |(+) a black spot appeared on|(-) no reaction occurred |(-) no reaction | |Pb(NO3)2
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ry SL Chemistry Name______________________________________________ IB Guide to Writing Lab Reports Standard and Higher Level Chemistry 2010-2011 Table of Contents page 1 Explanations‚ Clarifications‚ and Handy Hints page 2 - 13 IB Laboratory Evaluation Rubric page 14 - 15 Formal Lab Report Format page 16 Error Analysis Types of Experimental Errors page 17 Error Analysis: Some Key Ideas page 18 Precision and Accuracy in Measurements A Tale of Four Cylinders
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Niharika Palakodety‚ Victoria Wang‚ and Grace Xiong Mrs. Rhonda Smith Honors Chemistry Period 4 13 May 2012 Redox Reactions Lab Report We wished to investigate the oxidation number of a metal that would form aqueous ions when reacted with an aqueous nitrate salt. For this purpose‚ we chose to investigate the reaction of solid copper metal‚ in the form of a wire‚ with aqueous silver nitrate. Before we began the lab‚ we hypothesized that when silver nitrate‚ AgNO3‚ reacts with copper‚ Cu‚ the
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detail of September 11‚ 2001‚ but the most vivid memory I have is the day Heath Ledger died. I know it sounds a little dramatic‚ but I swear my heart was ripped from my throat and I cried like a baby. I was in shock and to tell you the truth‚ I still am. Knights aren’t supposed to die; they are supposed to live forever. I know now that it was all a fairy tale because my knight died January 22‚ 2008. The first time I saw Heath he played Mel Gibson’s son in The Patriot. As I watched him I felt his
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Student Mrs. Teacher Class Date Katie Limbach Mrs. Falk Chemistry 09-13-13 Title: Properties of Gases Purpose : The purpose of this lab was to learn about properties‚ both physical and chemical‚ of gases and to be able to identify them. Materials: Matches Toothpicks Pie tin Marker White Vinegar Hydrogen peroxide Measuring spoons Straw Tissue paper Baking soda Test tubes 24 Well Plate Pipet Stoppers for the test tube Chemicals provided by Labpaq Procedure:
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Lee Experiment date: March 2‚ 2017 Table of Contents 1. Abstract 3 2. Introduction 3 3. Experimental details 4 3-1. Materials 4 3-2. Apparatus 7 3-3. Procedure 7 3-4. Special Precautions 8 3-5. Lab techniques 9 4. Results 9 5. Discussion 14 6. Conclusion 16 7. References 17 1. Abstract This lab report discusses an experiment to study thermodynamics and find ideal ionic compound to be used in hand warmer. Calorimetry experiment was conducted by dissolving three ionic compounds‚ CaCl2‚ Na2CO3
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