What is the standard cell potential of the Zn/Cu galvanic cell if the standard electrode potentials are -0.76 V and 0.34 V?
Answer and explanation
Correct answer: A. 1.1 V
- Step 1: ; the more positive electrode is the cathode.
- Step 2: V.
Answer
1.1 V.
Why not the others: -0.42 V: the potentials were added instead of subtracted. -1.1 V: the more negative potential was subtracted from the more positive one in the wrong order. 1.2 V does not fit.
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