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Calculate DeltaG^@ and equilibrium const...

Calculate `DeltaG^@` and equilibrium constant for the reaction. `Cu^(2+)+In^(2+)harrCu^+ +In^(3+)` `E_(Cu^(2+)Icu)^@=0.15 V` `E_(In^(2+)In)^@ =-0.4V` `E_(In^(3+)IIn^+=-0.42 V`

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