Ethyl butyrate, CH3CH2CH2CO2CH2CH3, is an artificial fruit flavor commonly used

Question

Ethyl butyrate, CH3CH2CH2CO2CH2CH3, 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+):

CH3CH2CH2CO2H(l)+CH2CH3OH(l)H+CH3CH2CH2CO2CH2CH3(l)+H2O(l)

Given 8.30 g 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.

Explanation / Answer

Molar masses

Ethyl butyrate 116.16 g/mol

butanoic acid 88.11 g/mol

According to the reaction:

From 88.11 g (1 mol) butanoic acid one will obtain…………116.16 g/mol (1 mol)Ethyl butyrate

From 8.30 g …………………………………………………………………..x

X = 10.9 g Ethyl butyrate

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