Chemistry · Electrochemistry
A button cell used in watches functions according to the following reaction: Zn(s) + Ag2O(s) + H2O(l) ≤⇒ 2Ag(s) + Zn2+(aq) + 2OH-(aq) If the half-cell reduction potentials are: Zn2+(aq) + 2e- → Zn(s); E° = -0.76 V Ag2O(s) + H2O(l) + 2e- → 2Ag(s) + 2OH-(aq); E° = 0.34 V The standard cell potential (E°cell) will be:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 11.10 V✓
- 20.42 V
- 30.84 V
- 41.34 V
Correct answer
1.10 V
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