Calculate the Equilibrium Constant for the Reaction Below at 25

question 64

Multiple Choice

Calculate the equilibrium constant for the reaction below at 25 °C. Co(s) + 2 Cr³⁺(aq) → Co²⁺(aq) + 2 Cr²⁺(aq)
The standard reduction potentials are as follows:
Co²⁺(aq) + 2 e^- → Co(s)
E° = -0.28 V
Cr³⁺(aq) + e^- → Cr²⁺(aq)
E° = -0.41 V

• A) 4.0 × 10^-5
• B) 2.5 × 10⁴
• C) 1.0 × 10⁵
• D) 1.2 × 10⁵
• E) 1.3 × 10⁵

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