A Concentration Cell Is Constructed Using Two Co Electrodes with Co²⁺

question 63

Multiple Choice

A concentration cell is constructed using two Co electrodes with Co²⁺ concentrations of 0.20 M and 3.6 × 10^-5 M in the two half-cells. Determine the standard reduction potential of Co²⁺, given that the potential of the cell at 25°C is 0.111 V.

• A) +0.221 V
• B) +0.111 V
• C) -0.111 V
• D) This cannot be determined with the information given.
• E) 0 V

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