A Voltaic Cell Is Constructed with Two Zn²⁺-Zn Electrodes,where the Half-Reaction

question 48

Multiple Choice

A voltaic cell is constructed with two Zn²⁺-Zn electrodes,where the half-reaction is
Zn²⁺(aq) + 2e^- → Zn(s) E° = -0.763 V
The concentrations of zinc ion in the two compartments are 5.50 M and 1.11 × 10^-2 M,respectively.The cell emf is ________ V.

• A)-1.54 × 10^-3
• B)-378
• C)0.0798
• D)0.160
• E)-0.761

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