Jeana Greaves Chem3301-112 June 19‚ 2013 Synthesis of Aspirin from Methyl Salicylate Introduction The synthesis of Aspirin (Acetyl Salicyclic Acid) began with methyl salicylate and sodium hydroxide as the reagent. The polar oxygen accepts the electrons from now positively charged hydrogen. The positively charged sodium disassociates leaving the hydroxide ion with a negative Scheme 1 shows the mechanisms that were demonstrated during the synthesis of Aspirin. charge that attracts to the positively
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Lab 1: Synthesis of Aspirin Introduction: The purpose of this lab was to demonstrate the ability to easily alter the molecular structure of a compound to greatly increase its utility. In this case‚ an acetyl group was added to salicylic acid‚ a naturally occurring compound with significant pharmaceutical value. Without the addition of the acetyl group‚ salicylic acid is an irritant to the gastro-intestinal (GI) tract. Once the acetyl group is added via a simple reaction‚ acetylsalicylic
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Dept. Shaqlawa Name of experiment The velocity of sound by means of resonance tube closed at one end. No. experiment: 5 Name: Goran Kamaran A.razaq Stage: 1st Class Group: C Date: 12/12/2013 Apparatuses:- This lab utilizes the following materials: Resonance tube Pail of water Tuning forks Rubber mallet Measuring tape Thermometer Thorey:- Fill the tube with water to about 10cm to the open end of the tube. To adjust the level of the water in the tube‚ move the
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Purpose: To synthesize 1‚2‚3‚4-tetraphenylnaphthalene through a two-step synthesis. The aldol condensation reaction between benzil and dibenzyl ketone forms 2‚3‚4‚5-tetraphenylcyclopentadienone‚ which then reacts with a benzene formed by anthranilic acid and isoamyl nitrate in order to yield 1‚2‚3‚4-tetraphenylnaphthalene. Reaction Equation A: Synthesis of 2‚3‚4‚5-tetraphenylcyclopentadienone: A solution of 4 capsules potassium hydroxide (0.5g) and 5mL anhydrous ethanol was prepared
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experimental investigation of scanner data preparation strategies for consumer choice models Rick L. Andrews‚ Imran S. Currim ‚ Over the past two decades‚ marketing scientists in academia and industry have employed consumer choice models calibrated using supermarket scanner data to assess the impact of price and promotion on consumer choice‚ and they continue to do so today In order to guide managerial decisions regarded price and promotion strategies. In its raw form‚ scanner panel
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Florida: Rinehart and Winson Inc Badovick J. G. (1990). Emotional reactions and salesperson motivation: An attributional approach following inadequate sales performance Science‚ 18(Spring)‚ 123–130. Bannister‚ J. P.‚ & Saunders‚ J. A. (1978). UK consumers ’ attitudes towards imports: The measurement of national stereotype image
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EVIDENCE OUTLINE INTRODUCTION -Basics of Evidence 1 -Process of Proof & the Adversarial System 1 -Making and Meeting Objections 1 -Common Objections 2 RELEVANCE -Relevant Evidence 2 -Stipulations 2 -Components of Relevant Evidence 2 -Balancing Test 2 -Proposition 8 2 EVIDENCE EXCLUDED BY EXTRINSIC POLICIES CHARACTER EVIDENCE -Types of Character Evidence 3 -Character Trait at Issue 3 -Conduct in Conformity & Exceptions 3 -Relevant Non-Propensity Purpose 4
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Journal of Economics and Behavioral Studies Vol. 5‚ No. 8‚ pp. 522-534‚ Aug 2013 (ISSN: 2220-6140) The Impact of Husband’s Perception and Value towards Family Purchase Decision Patterns *Christian Wibisono‚ Mustika Sufiati Purwanegara Institute of Technology Bandung‚ School of Business and Management‚ Indonesia *christian.w@sbm-itb.ac.id Abstract: Changes are occurring in society’s norm structure. One of these changes is the shifting of women roles. More wives are working outside home
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There are several examples that come to mind when I think of price elasticity. Included in my list are fuel‚ cigarettes‚ electricity‚ and toilet paper. Price elasticity means that the behaviors of supply and demand are not affected when the price of that particular item rises (changes). Our local power companies experience price elasticity on the energy that we demand‚ when they continually raise prices but the amount of consumer usage is unaffected. In some parts of the country their may
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Synthesis of DEET Abstract: For this experiment m-toluic acid was reacted with thionyl chloride resulting in a nucleophilic acyl substitution which could then be used to create DEET with excess diethyl amine (Figure 1). This was done by adding diethyl amine drop wise using a seperatory funnel which resulted in a gas formation which was controlled with a condenser attached to a gas vacuum. The resulting mixture was then washed to remove excess acids and bases and rotovapped. DEET was synthesized
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