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General Chemistry

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Moderate

Determination of Equilibrium Concentration of Esterification

CHEM-C7DTYA

Ethyl acetate ($\textrm{CH}_3\textrm{CO}_2\textrm{C}_2\textrm{H}_{5}$) is a colorless liquid with a sweet smell that is used in decaffeinated tea and coffee, glues, and nail polish removers.

It may be formed by a process called esterification using ethanol ($\textrm{C}_2\textrm{H}_5\textrm{OH}$) and acetic acid ($\textrm{CH}_3\textrm{CO}_2\textrm{H}$) with an equilibrium constant, $K$, of $3.4$. In addition to ethyl acetate, this reaction forms water.

Consider the aqueous reaction of $550 \textrm{ mL}$ of $0.300 \textrm{ M}$ ethanol and $750 \textrm{ mL}$ of $0.200 \textrm{ M}$ acetic acid.