A Cell Can Be Prepared from Copper and Tin

question 63

Multiple Choice

A cell can be prepared from copper and tin. What is the E°_cell for the cell that forms from the following half-reactions?
Cu²⁺(aq) + 2e^- Cu(s) E° = 0.34 V
Sn⁴⁺(aq) + 2e^- Sn²⁺(aq) E° = 0.13 V

• A) 0.47 V
• B) 0.21 V
• C) -0.21 V
• D) -0.47 V
• E) 0.42 V

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