A stepwise mechanism for the given transesterification reaction is to be drawn. Concept introduction: The replacement or substitution of one functional group with another functional group in any chemical reaction is termed as substitution reaction. The electron rich chemical species that contains negative charge or lone pair of electrons is known as a nucleophile. In nucleophilc acyl substitution reaction, nucleophile takes the position of a leaving group.

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Chapter 22, Problem 22.57P

Interpretation Introduction

Interpretation: A stepwise mechanism for the given transesterification reaction is to be drawn.

Concept introduction: The replacement or substitution of one functional group with another functional group in any chemical reaction is termed as substitution reaction. The electron rich chemical species that contains negative charge or lone pair of electrons is known as a nucleophile. In nucleophilc acyl substitution reaction, nucleophile takes the position of a leaving group.

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Ethyl butyrate, CH3CH2CH2CO2CH2CH3CH3CH2CH2CO2CH2CH3, is an artificial fruit flavor commonly used in the food industry for such flavors as orange and pineapple. Its fragrance and taste are often associated with fresh orange juice, and thus it is most commonly used as orange flavoring. It can be produced by the reaction of butanoic acid with ethanol in the presence of an acid catalyst (H+H+): CH3CH2CH2CO2H(l)+CH2CH3OH(l)H+⟶CH3CH2CH2CO2CH2CH3(l)+H2O(l) Given 8.45 gg of butanoic acid and excess ethanol, how many grams of ethyl butyrate would be synthesized, assuming a complete 100%% yield? Express your answer in grams to three significant figures. A chemist ran the reaction and obtained 5.50 gg of ethyl butyrate. What was the percent yield? Express your answer as a percent to three significant figures. The chemist discovers a more efficient catalyst that can produce ethyl butyrate with a 78.0%% yield. How many grams would be produced from 8.45 gg of butanoic acid and excess…