The following half-reactions occur in the mercury battery used in calculators. If E 1U1B1cell = 1.357 V, calculate the equilibrium constant for the cell reaction at 25 C. (Assume the stoichiometric coefficients in the cell reaction are all equal to 1.) HgO(s) + H2O(l) + 2e¯
Hg(l) + 2OH¯(aq)
ZnO(s) + H2O(l) + 2e¯
Zn(s) + 2OH¯(aq)
A) 9.4 * 1022
B) 7.5 *1045
C) 6.4 * 1063
D) 7.8 * 1091
E) > 9.9* 1099
Correct Answer:
Verified
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