Question

The standard free-energy change in the reaction of water with ethyl acetate \( \left(\mathrm{CH}_{3} \mathrm{CO}_{2} \mathrm{C}_{2} \mathrm{H}_{5}\right) \) to give ethanol \( \left(\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}\right) \) and acetic acid \( \left(\mathrm{CH}_{3} \mathrm{COOH}\right) \) is \( -19.7 \mathrm{~kJ} \). From this value and the values of the standard free-energy of formation of liquid ethanol, acetic acid, and water, calculate \( \Delta \mathrm{G}^{\circ}{ }_{\mathrm{f}} \) for ethyl acetate. 1st attempt See Periodic Table See Hint \begin{tabular}{|c|c|} \hline & \( \Delta \mathbf{G}^{\circ} \mathbf{f}(\mathrm{kJ} / \mathrm{mol}) \) \\ \hline \hline Ethanol \( (\ell) \) & -174.9 \\ \hline \hline Acetic acid \( (\ell) \) & -389.9 \\ \hline Water \( (\ell) \) & -237.2 \\ \hline \end{tabular}

          The standard free-energy change in the reaction of water with ethyl acetate \( \left(\mathrm{CH}_{3} \mathrm{CO}_{2} \mathrm{C}_{2} \mathrm{H}_{5}\right) \) to give ethanol \( \left(\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}\right) \) and acetic acid \( \left(\mathrm{CH}_{3} \mathrm{COOH}\right) \) is \( -19.7 \mathrm{~kJ} \). From this value and the values of the standard free-energy of formation of liquid ethanol, acetic acid, and water, calculate \( \Delta \mathrm{G}^{\circ}{ }_{\mathrm{f}} \) for ethyl acetate.
1st attempt
See Periodic Table
See Hint
\begin{tabular}{|c|c|}
\hline & \( \Delta \mathbf{G}^{\circ} \mathbf{f}(\mathrm{kJ} / \mathrm{mol}) \) \\
\hline \hline Ethanol \( (\ell) \) & -174.9 \\
\hline \hline Acetic acid \( (\ell) \) & -389.9 \\
\hline Water \( (\ell) \) & -237.2 \\
\hline
\end{tabular}

The standard free-energy change in the reaction of water with ethyl acetate (CH3CO2C2H5) to give ethanol (C2H5OH) and acetic acid (CH3COOH) is -19.7 kJ. From this value and the values of the standard free-energy of formation of liquid ethanol, acetic acid, and water, calculate ΔG^∘f for ethyl acetate.
1st attempt
See Periodic Table
See Hint

Δ𝐆^∘𝐟(kJ / mol)

Ethanol (ℓ) -174.9

Acetic acid (ℓ) -389.9

Water (ℓ) -237.2

Added by Precious C.

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