Organic Lab I No. 5-6 Separation of a Carboxylic Acid‚ a Phenol‚ and a Neutral Substance (Two-week lab) Reading Assignment 1) Chapter 7 • Introduction: P. 135- first paragraph • Theory and Techniques (p142-145) o Properties of Extraction Solvents o Mixing and Separating the Layers o Drying Agents o Part 1: The Technique of Neutral Liquid/Liquid Extraction The description is for dichloromethane-aqueous
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ChemActivity 10: Exercises 1. Draw a complete mechanism including the intermediate and most likely product for the reaction of each alkene below with H-X. H + H Cl + Cl Cl + + Br H Br H I Br + H I H + I H 2. Draw a complete mechanism of each pair of reactant including any favorable rearrangements and all important resonance structures of all intermediates. Reactant Pair 1 Cl H Br 1 + Cl No shift stable benzylic carbocation H: shift H H Br
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Introduction: The purpose of this experiment is to study a set of metals and their reactions reactions using different metals in an ordered activity series‚ the goal is to find the relative reactivity of them.Discovering why metals react with certain cations and solutions is the main point of this lab. This has many real life applications. When creating buildings‚ or bridges it is important to understand and counter-act the rusting of iron. You can do that by using the activity series. For any industry
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Christina Hang Vanessa Hang Seng Xiong Period 5 December 14‚ 2012 Molecular Mass by Freezing Point Depression Objective: Determine the molecular mass of an unknown substance by finding the change in freezing point of a solvent when the unknown substance is dissolved in it. Qualitative Data: Trials BHT (g) Cetyl –Alcohol (g) Unknown substance (g) Melting Temperature 1 0.48 g 0 0 69.3 2 0.46 g 0.09 g 0 66.9 3 0.49 g 0 0.11 g 53.7 Analysis: 1.) Determine ___ for the solution of cetyl
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Exercise 1. What safety equipment is available to you while you do your experiments? How far are they from you while you are conducting your experiments? This includes fire extinguishers‚ phones‚ showers‚ etc. The safety equipment that I have access to while performing my experiments are as follows; shower‚ fire alarms and a telephone. They are all within ten feet from where the experiment will take place. 2. What is an MSDS? MSDS is a document that is required by Osha’s “Hazard
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NOT FOR ELECTRONIC STUDENT ACCESS ONLY FOR CLASSROOM USE!! Unit 9: Stoichiometry Practice 1. Differentiate between the significance of the coefficients in a balanced chemical equation and the significance of the subscripts in a chemical formula. · Coefficients show the correct proportions of atoms and molecules in a chemical reaction. They are normal sized numbers placed at the beginning of the chemical formulas in a chemical reaction during the process of balancing. They tell how many of an entire
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The order of presentation is strongly recommended by the National Mathematics and Science Initiative (NMSI) UNIT 1 Foundations / Nomenclature / Stoichiometry (Summer Work and Introductory Review) these topics are all covered in College Prep and Honors Chem Chapter 1 Introduction: Matter and Measurement 1.1 The Study of Chemistry The Atomic and Molecular Perspective of Chemistry 1.2 Classifications of Matter States of Matter Pure Substances Elements Compounds Mixtures
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DREAM DEFFERED: THE STORY OF A HIGH-TECH ENTREPRENEUR IN A LOW-TECH WORLD INTERNATIONALIZATION OF SMALL AND MEDIUM ENTERPRISES MIDTERM 2011 PREPARED BY: LAURA PLANTJE PREPARED FOR: ERNESTO TAPIAS-MOORE MARCH 9‚ 2011 INTRO: Monique Maddy is a Harvard Business School graduate turned visionary entrepreneur who founded Adesemi Communications International. Adesemi was supposed to revolutionize the information technology sector in her home continent of Africa‚ by enabling thousands of
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What departments at Koala Tech have the most impact on quality? What role should each department play in helping Koala Tech improve overall quality? Koala Tech purchasing department had the most impact on the quality‚ but all department had a role to play in the overall quality. Koala Tech introduction of the PFS 1000’s‚ a multi-function color printer‚ scanner‚ copier‚ and fax machine created a high demand which created a backlog. A report indicated that PFS 1000’s returns and complaints were four
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Virginia Tech Massacre On April 16th‚ 2007 on the campus of Virginia Tech in Blacksburg‚ Virginia‚ America’s deadliest random act of violence occurred. Seung-Hui Cho shot and killed thirty-two people and wounded 15 others. After the attacks he later shot and killed himself which makes the total amount of deaths thirty-three people. This massacre is the most deadly shooting by a single gunman in United States history. Students were getting ready to go to class just like any other day. However
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