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

---

Definitions:

Manipulates Factors

To control or alter variables or components in an experimental setting to determine their effects on an outcome.

Experiment

A method of testing hypotheses by observing the outcomes of controlled conditions.

Correlation

A statistical measure that indicates the extent to which two or more variables fluctuate together, showing the relationship but not causation between them.

Causation

The relationship between cause and effect, where one event or action directly results in another.