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Calculate E^0 for the following reaction...

Calculate `E^0` for the following reactions at 298K,
`Ag(NH_3)_2^+ +e^- `Ag(CN)_2+e^- Given: `E_(Ag^+//Ag)^0=0.7991V,K_(Ins)[Ag(NH_3)_2^+]`
`=6.02xx10^(-8)` and `K_(Ins)[Ag(CN)_2^-]=1.995xx10^(-19)`

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