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A cell is to be constructed to show a re...

A cell is to be constructed to show a redox change `:`
`Cr+2Cr^(3+)hArr3Cr^(2+)`. The number of cells with different `E^(c-)` an `n` but same value of `DeltaG^(c-)` can be made `(` Given `E^(c-)._(Cr^(3+)|Cr^(2+))=-0.40V,E^(c-)._(Cr^(3+)|Cr)=-0.74V,` adn `E^(c-)._(Cr^(2+)|Cr)=-0.91V)`

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What is the value of E^(@) cell in the following reaction? Cr|Cr^(3+) (0.1 M)||Fe^(2+) (0.01 M)|Fe Given, E_(Cr^(3+)//Cr)^(@)=-0.74 V, E_(Fe^(2+)//Fe)^(@)=-0.44 V

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