A galvanic cell is made from a Zn|Zn²⁺ half-cell (-0.76 V) and a Ag|Ag⁺ half-cell (+0.80 V), where Ag is the cathode. Calculate the standard emf of the cell.
Answer and explanation
Correct answer: A.
- Step 1: .
- Step 2: V.
Answer
.
Why not the others: : the potentials were added instead of subtracting the anode from the cathode. : the sign is wrong: anode was subtracted from cathode in the wrong order. does not fit.
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