23. The standard potential for the reaction \( Zn + 2Ag^+ \rightarrow Zn^{2+} + 2Ag \) is 1.56 V. Given that the standard reduction potential for \( Ag^+ + e^- \rightarrow Ag \) is 0.80 V, determine the standard reduction potential for \( Zn^{2+} + 2e^- \rightarrow Zn \).
(A) −0.76 V
(B) 0.04 V
(C) 0.76 V
(D) 2.36 V
(E) none of these

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