A Voltaic Cell Is Made by Combining the Half-Reactions

question 49

Multiple Choice

A voltaic cell is made by combining the half-reactions:
Sn²⁺ + 2 e ^- →Sn E ° = +0.15 V Ag⁺ + e ^- →Ag E ° = +0.80 V Calculate the voltage of the cell at 298 K if [Sn²⁺] = 0.15 M and [Ag⁺] = 1.7 M.

• A) +0.65 V
• B) +0.65 -
• D) - 0.94 +
• E) - 0.94 -

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