Reactions between alcohol and carboxylic acid produce esters. However, these reactions do not go to completion, and instead, reach an equilibrium. The most commonly produced ester is ethyl acetate (CH3COOCH2CH3), which is used as a solvent in the pharmaceutical industry and to decaffeinate coffee and tea. Ethyl acetate is produced by reacting ethanol (the alcohol that gets you drunk) with acetate (the acid in vinegar), show in the reaction below:
CH3CH2OH(l) + CH2COOH(l) <-> CH3COOCH2CH3(l) + H2O(l) Kc = 3.96 at 80 degree C
At 80 C, 25.0 mL of ethanol (d=0.778 g/mL) are reacted with 35.0 mL of acetic acid (d = 1.01 g/mol).
What is the equilibrium concentration of ethyl acetate? Report your answer to three significant figures in decimal form, in molarity (units required).
What is the equilibrium concentration of acetic acid? Report your answer to three significant figures in decimal form, in molarity (units required).