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Standard electrode potential for Sn^(4+)...

Standard electrode potential for `Sn^(4+)//Sn^(2+)` couple is `+ 0.15 V` and that for the `Cr^(3+) //Cr ` coule is `-0. 74 V`. These two coules in their standard state are connected to made a cell. The cell potential wil be .

Text Solution

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Given : `E_(Sn^(4+)//Sn^(2+))^(@)=0.15V`
`E_(Cr^(3+)//Cr)^(@)=-0.74V`
`E_("cell")=E_(Sn^(4+)//Sn^(2+))^(@)-E_(Cr^(3+)Cr)^(@)`
`=0.15-(-0.74)`
`=0.89V.`
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