Calculate the Equilibrium Constant for the Following Reaction at 25°C

question 12

Multiple Choice

Calculate the equilibrium constant for the following reaction at 25°C, 2IO₃^-(aq) + 5Hg(l) + 12H⁺(aq) ? I₂(s) + 5Hg²⁺(aq) + 6H₂O(l) Given the following thermodynamic information.(R = 8.31 J/K?mol,F = 96480 C/mol e?) z
$\begin{array}{ll}\mathrm{IO}_{3}{ }^{-}(a q) +6 \mathrm{H}^{+}(a q) +5 e^{-} \rightarrow \mathrm{I}_{2}(s) +3 \mathrm{H}_{2} \mathrm{O}(l) & E^{\circ}=+1.20 \mathrm{~V} \\\mathrm{Hg}^{2+}(a q) +2 e^{-} \rightarrow \mathrm{Hg}(l) & E^{\circ}=+0.86 \mathrm{~V}\end{array}$

• A) 3 × 10^-58
• B) 6 × 10⁵
• C) 3 × 10¹¹
• D) 6 × 10²⁸
• E) 3 × 10⁵⁷

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