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Calculate cell potential at 298K for the...

Calculate cell potential at 298K for the following cell.
`Zn_((S))|Zn^(2+)(0.6M)||Cu^(2+)(0.3M)|Cu_((S))` [`E_(cell)^(Theta)=1.1V`]

Text Solution

Verified by Experts

Reaction : `Zn_((S))|Zn^(2+)(0.6M)||Cu^(2+)(0.3M)|Cu_((S))`
Where, `n=2," "E_(cell)^(Theta)=1.1V`
`[Zn^(2+)]=0.6," "[Cu^(2+)]=0.3M`
Cell potential=`E_(cell)`
`E_(cell)=E_(cell)^(Theta)-(0.059)/(n)"log"([Zn^(2+)])/([Cu^(2+)])`
`=1.1-(0.059)/(2)"log"(0.6)/(0.3)`
`=1.1-0.0295log2`
`=1.1-(0.0295)(0.3010)`
`=1.1-0.0089`
`=1.0911`V
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Knowledge Check

  • Calculate emf of cell for the following reaction. Ni_((S))+2Ag^(+)(0.002M) to Ni^(+2)(0.160M)+2Ag_((S)) [where, E_(cell)^(@)=1.05V ].

    A
    `1.9142`
    B
    `9.142`
    C
    `0.9142`
    D
    `91.42`

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