Use the Tabulated Half-Cell Potentials to Calculate the Equilibrium Constant

question 71

Multiple Choice

Use the tabulated half-cell potentials to calculate the equilibrium constant (K) for the following balanced redox reaction at 25 °C: 3I₂(s) + 2Fe(s) → 2Fe³⁺(aq) + 6I⁻(aq)
E°(I₂/I^-) = + 0.54 V and E°(Fe³⁺/Fe) = -0.036 V

• A) 3.5 × 10^-59
• B) 1.1 × 10¹⁷
• C) 2.4 × 10⁵⁸
• D) 8.9 × 10^-18
• E) 1.7 × 10²⁹

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Definitions:

Days

Units of time measuring 24 hours, often used to calculate interest, maturity dates, and other financial time periods.

Interest Earned

The amount of money gained as profit from an investment over a certain period of time.

Account

A record summarizing all the transactions pertaining to a single item in the financial statements.

Days

The basic unit of time, equal to 24 hours, used to measure duration from one midnight to the next.