Synthesis of Butyl Benzoate Using Phase Transfer Catalysis The objective of the experiment is to synthesize the butly benzoate by nucleophilic substitution and characterize it by IR spectroscopy. The percent yield of the final product is determined after the synthesis. Procedures: 2.0 mL of 1-bromobutane‚ 3.0 g of sodium benzoate‚ 5.0 mL of water‚ 4 drops of Aliquat 336‚ and a boiling stone were placed in a 50mL round-bottomed flask. The reaction mixture was refluxed for 1 hour and the flask
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CHM 3411 – Problem Set 6 Due date: Wednesday‚ March 23rd. Do all of the following problems. Show your work. 1) Consider the cyclic molecule C8H8‚ the eight carbon analogue to benzene. a) Write the secular detrerminant corresponding to the pi-bonding in C8H8. b) Using the secular determinant‚ the following energies are found for the pi-bonding molecular orbitals: 1 = + 2 2 = + 1.41 (two states) 3 = (two states) 4 = - 1.41 (two states) 5 = - 2 Give the electron
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Introduction: During this laboratory exercise will identify by the graph given which is isotonic‚ hypotonic‚ or hypertonic. The kidneys are a pair of fist-sized organs located outside the peritoneal cavity on each side of the spine. The kidney is a highly specialized organ that maintains the internal environment of the body by selectively excreting or retaining various substances according to specific body needs. The process of urine formation and adjustment of blood composition involves three
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Questions and Hypothesis: Seed germination‚ plant growth‚ and sprouting of leaves are affected by several factors: supply of nutrients‚ water‚ exposure to sunlight‚ and conditions of surroundings. Due to certain stimuli in the surroundings plant “hormones” cause plants to behave in ways that ensure the most efficient use of resources while preserving the most energy. One stimulus to consider‚ is the exposure of plants to sunlight; when plants are just sprouting and are underground‚ the sti
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April 04‚ 2014 Fisher Esterification Introduction: Esters are one of the most common derivatives of carboxylic acids and are widely distributed in both nature and industry. A Fischer Esterification is the formation of an ester and water from alcohol and an acid. It is the simplest means of synthesizing an ester and requires the reaction of a carboxylic acid and an alcohol. The general reaction of Fischer esterification is‚ CH3CO2H + ROH ↔ CH3CO2R + H2O (reaction1) CH3COOH + ROH ↔
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The purpose of this lab was to observe osmosis in the Gummy Bears and to investigate the movement of water in and out of a Gummy Bear. The hypothesis stated that the salt will make the gummy bear weigh more‚ but it will keep the gummy bear more intact. However‚ the results showed that the gummy bear decreased in mass because of the salt and water. This contradicts the hypothesis because of how it was believed that the gummy bear would increase in weight‚ but it did the exact opposite. One part of
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Introduction In unit 7.3 the experiment tested the ability of lactase to specifically bind and interact with lactose compared to maltose. In unit 7.4 the experiment tested the role‚ if any‚ that metal ions have on the activity of lactase. My hypothesis for unit 7.3 was knowing that lactase is specific for lactose‚ lactose will separate into galactose and glucose‚ as maltose will not change (153-155). Lactase should like lactose. For unit 7.4 my hypothesis was that EDTA will remove the ions‚ and
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Limiting Reagent and Percent Yield Aim To determine the limiting reagent between the reaction of lead (II) nitrate and potassium iodide. To determine the percent yield of lead (II) iodide. Date Started: 13/4/12. Finished: 19/4/12. Data collection and processing Measurements: * Amount of distilled water: 75.0ml ± 0.5ml. * Mass of watch glass: 31.65g ± 0.01g. * Mass of watch glass + potassium iodide: 32.45g ± 0.01g. * Mass of potassium iodide: 0.8g ± 0.02g. * Mass of watch
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TABLE OF CONTENT NO. | CONTENT | PAGE | 1. | Title | 2 | 2. | Theory | 2 | 3. | Introduction | 2 | 4. | Objective | 3 | 5. | Apparatus | 3 | 6. | Procedure | 4 | 7. | Result | 6 | 8. | Calculation | 10 | 9. | Discussion | 13 | 10. | Conclusion | 14 | 11. | References | 14 | TITLE: H1 – Osborne Reynolds Demonstration INTRODUCTION: Osborne Reynold’s Demonstration has been designed for students experiment on the laminar‚ transition and turbulent flow. It consists of a transparent
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Tittle : Investigation of the Enzymatic Effects of Materials on Hydrogen Peroxide Solution Objective: To investigates the enzymatic effect of various materials in the hydrogen peroxide solution. Table 1 Test Tube Contents with 5 cm3 hydrogen peroxide Observations before and after using wood splint Observation of after Observation of after adding hydrogen using wooden glowing peroxide splinter 1 Fresh liver Moderate
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