Using the Thermodynamic Data Provided Below, Calculate K_sp for ZnS(s) $\circ$

question 44

Multiple Choice

Using the thermodynamic data provided below, calculate K_sp for ZnS(s) at 25 ^$\circ$ . $\begin{array}{|l|l|c|}\hline & \Delta \mathrm{H}^{\circ}_f(\mathrm{kJ} / \mathrm{mol}) & \mathrm{S}^{\circ}(\mathrm{J} / \mathrm{K} \cdot \mathrm{~mol}) \\\hline \mathrm{Zn}^{2+}(a q) & -152.4 & -106.5 \\\hline \mathrm{~S}^{2-}(a q) & 41.8 & 22 \\\hline \mathrm{ZnS}(s) & -203 & 57.7 \\\hline\end{array}$

• A) 2.4 * 10^-22
• B) 2.4 * 10^-24
• C) 2.4 * 10^-26
• D) 2.4 * 10^-28
• E) None of the above

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