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 llavoring. It can be produced by the reaction of butanoic acid with ethanol in the presence of an acid catalyst (II): CH3CH2CH2CO2H()+CH2CHOH(U) CH CH2CH2CO CH2CH3(1) + H20(0) - Part A Given 7.55 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. View Available Hint(s) II (DE mass of ethyl butyrate Submit Part B A chemist ran the reaction and obtained 5.458 of ethyl butyrate. What was the percent yield? Express your answer as a percent to three significant figures. View Available Hint(s) percent yield Submit Part C The chemist discovers a more efficient catalyst that can produce ethyl butyrate with a 78.0% yield. How many grams would be produced from 7.55 g of butanoic acid and excess ethanol? Express your answer in grams to three significant figures. View Available Hint(s) ( 1 . mass of ethyl butyrate = Submit

Answer 1

4) сен, с, сон, + Chroн 88) чЯ м, сk-ch-ce, -сосс * ња) 161 166 ") - — sop — 1169 Ethyl butyrate 4- — энт 16 4-10 Р 8) if chemit tan a rection and obtained 5.48g Ethyl buty sale y yeld = sus x 100 9:9 - Sч.3 и c) with Catalyst 78% Petted yield seen. Top 5 - 9,95 я ає». + , 78 x 9:45 то - 1 - 2 и