Answer to Question #236584 in General Chemistry for Mickayla

Question

The following half-reactions occur in the mercury battery used in calculators. If E° _cell = 1.357 V, calculate the equilibrium constant for the cell reaction at 25° C

HgO(s) + H₂O(l) + 2e^-  ↔ Hg(l) + 2OH^-(aq)

ZnO(s) + H₂O(l) + 2e^- ↔ Zn(s) + 2OH^-(aq)

1. 9.4 x 10²²
2. 7.5 x 10⁴⁵
3. 6.4 x 10⁶³
4. 7.8 x 10⁹¹

Answer 1

1.9.4 x 10^{22}