new lab5

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CUNY Bronx Community College *

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31

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Chemistry

Date

Jan 9, 2024

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docx

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6

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Lawal1 Jumain Lawal Adebayo CHM 31 (Organic Chemistry 1) Lab report 5: Banana Oil Professor Sunej Hans December 5, 2023 Lab Report 5: Banana Oil Objective The goal of this experiment is to use acetic acid and isopentyl alcohol to undergo Fischer esterification in order to produce isopentyl acetate, or banana oil. Introduction Isopentyl acetate, or banana oil, is a sweet-smelling liquid ester that is used to enhance particular aromas, draw in animals, and artificially flavor fruit. Among many other simple esters, isopentyl acetate is one that usually has a nice scent. The aim of this experiment is to synthesize isopentyl acetate by means of an esterification reaction involving isopentyl alcohol and acetic acid. The reaction will be catalyzed by concentrated sulfuric acid and will be achieved by refluxing and simple distillation. In order to create the ester and water, esterification entails the creation of esters from alcohol and carboxylic acids. To create the ester, the carboxyl group must first be protonated, then the hydroxyl must be nucleophilic attacked, proton transfer must occur, water must be lost, and catalytic acid must be lost. A thermodynamically controlled process yields the most stable ester product. Once the final liquid product was obtained through these procedures, the percent yield was computed using the experiment's data gain and infrared spectroscopy, or IR, to verify the identity of the final product.
Lawal2 Reaction Scheme Data & Analysis Percentage yield of reaction = Actual yield / Theoretical yield x 100% Theoretical Yield Actual Yield Percent Yield Temperature of Completed Value Literature Boiling Point 5.9907g 2.224g 37.12% 144°C 142°C - 145°C
Lawal3
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