試題詳解

9. The standard potential for the following reaction: Zn + 2Ag+ → Zn2+ + 2Ag is 1.56 V. Calculate the cell potential for the following reaction: 2Zn2+ + 4Ag → 2Zn + 4Ag+
(A) 1.56 V
(B) -1.56 V
(C) 3.12 V
(D) -3.12 V