Cu²⁺ + 2e⁻ → Cu E° = +0.34 V Zn²⁺ + 2e⁻ → Zn E° = -0.76 V
For the galvanic cell Zn|Zn²⁺ || Cu²⁺|Cu, what is E°cell?
- Acheck_circle
+1.10 V
- B
-1.10 V
- C
-0.42 V
- D
+0.42 V
Explanation
E°cell = E°cathode - E°anode = (+0.34) - (-0.76) = +1.10 V.
Cell Potential and Free Energy
AP Chemistry· difficulty 3/5
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