For the cell , different half cells and their standard electrode potentials are given below:

| | | | | |
|---|---|---|---|---|
| (V) | 1.40 | 0.80 | 0.77 | −0.44 |

If , which cathode will give

Question

For the cell , different half cells and their standard electrode potentials are given below:

|  |  |  |  |  |
|---|---|---|---|---|
|  (V) | 1.40 | 0.80 | 0.77 | −0.44 |

If , which cathode will give a maximum value of  per electron transferred?

Canvas Classes · Accepted Answer

Strategy:
 The question asks for the maximum value of  per electron transferred. This is defined as , where  is the number of electrons in the reduction half-reaction.

Step 1: Setup calculations for all half-cells
Anode is Zinc: .
Formula:

1. : 
2. :  (Maximum)
3. : 
4. :

Step 2: Conclusion
The silver electrode gives the highest potential per electron.

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