Given the Following Standard Reduction Potentials Determine K_sp for PbSO₄(s)at 25°C

question 38

Multiple Choice

Given the following standard reduction potentials, $\begin{array}{ll}\mathrm{Pb}^{2+}(a q) +2 e^{-} \rightarrow \mathrm{Pb}(s) & E^{\circ}=-0.126 \mathrm{~V} \\\mathrm{PbSO}_{4}(s) +2 e^{-} \rightarrow \mathrm{Pb}(\mathrm{s}) +\mathrm{SO}_{4}^{2-}(a q) & E^{\circ}=-0.355 \mathrm{~V}\end{array}$
Determine K_sp for PbSO₄(s) at 25°C.(R = 8.31 J/K?mol,F = 96480 C/mol e?)

• A) 3.4 × 10^-28
• B) 1.8 × 10^-8
• C) 5.6 × 10^-5
• D) 5.6 × 10⁷
• E) 2.9 × 10³⁷

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