Question

A classic experiment in equilibrium studies dating from 1862 involved the reaction in aqueous solution of...

A classic experiment in equilibrium studies dating from 1862 involved the reaction in aqueous solution of ethanol and acetic acid to produce ehty1 acetate and water

C2H5OH(aq)+CH3COOH(aq)<=>CH3COOC2H5(aq)+H2O(l)

The reaction can be followed by analtzing the equilibrium mixture for its acetic acid content using a titration with Ba(OH)2 as shown below:

2CH3COOH(aq)+Ba(OH)2(aq)<=>Ba(CH3COO)2(aq)+2H2O

In one experiment, a mixture of 1 moles acetic acid and 0.5 moles ethanol is brought to equilibrium in a 1 L flask. A 20 mL sample of the equilibrium mixture requires 56.74 mL of 0.1 M Ba(OH)2 for its titration.

What is the mass action expressin for the reaction of ethanol and acetic acid?

what is the value of the equilibrium constant for the reaction of ethanol and acetic acid?

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