Multiple choice

Calculate the standard cell potential for the cell. Zn; Zn+2 (1M) ll Cu2+ (M); CuEo for Zn+2/Zn = -0.67; Eo for Cu2+/Cu = +0.43

  1. +0.43 – (-0.67) = +1.10 v

  2. -0.67 + 0.43 = - 0.42 v

  3. -0.67 – (+0.43) = -1.10 v

  4. -0.43 – (-0.67) = +0.42 v

  5. None of these
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A Correct answer
Explanation

Standard cell potential, Eocell = Eocathode - Eoanode = +0.43 – (-0.67) v = +1.10 v

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