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If it is disreed to construct the follow...

If it is disreed to construct the following voltaic cell to have `E_(cell) = 0.0860 V`, what `[Cl^(-)]` must be present in the cathodic half cell to achieve the desired e.m.f.? Given `K_(SP)` of `AgCl` and `Agl` are `1.8 xx 10^(-10)` and `8.5 xx 10^(-17)` respectively.
`Ag_((s))|Ag^(+)[Sat. Agl_((aq.))]||Ag^(+)[Sat.AgCl.xMCl^(-)|Ag_((s))]`

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The correct Answer is:
`6.8 xx 10^(-4)M ;`
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