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For a Mg | Mg 2+ (aq) || Ag + (aq) | Ag the correct Nernst Equation is :

1. E cell = o cell E – ] Mg [ ] Ag [ ln F 2 RT 2 + +
2. E cell = o cell E + ] Mg [ ] Ag [ ln F 2 RT 2 2 + +
3. E cell = o cell E – ] Ag [ ] Mg [ ln F 2 RT 2 + +
4. E cell = o cell E – ] Mg [ ] Ag [ ln F 2 RT 2 2 + +

Correct answer: E cell = o cell E + ] Mg [ ] Ag [ ln F 2 RT 2 2 + +

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