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The Edison storage cell is represented a...

The Edison storage cell is represented as `:`
`Fe(s)|FeO(s)|KOH(aq)|Ni_(2)O_(3)(s)|Ni(s)`
The half`-` cell reactions are `:`

`a.` What is the cell reaction ?
`b.` What is the cell `EMF` ? How does it depend on the concentration of `KOH` ?
`c.` What is maximum amount of electrical energy that can be obtained from `1 mol ` of `Ni_(2)O_(3)` ?

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