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Calculate the equilibrium constant for t...

Calculate the equilibrium constant for the reaction:
`3Sn(s) +2Cr_(2)O_(7)^(2-) +28 H^(+) rarr 3Sn^(+4) +4Cr^(3+) +14H_(2)O`
`E^(@)` for `Sn//Sn^(+2) = 0.136 V E^(@)` for4 `Sn^(2+)//Sn^(4+) =- 0.154V`
`E^(@)` for `Cr_(2)O_(7)^(2-)//Cr^(3+) = 1.33V`

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