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For the cell (at 1bar H(2) pressure) Pt|...

For the cell (at 1bar `H_(2)` pressure) Pt|`H_(2)`(g) HX(m_(1), NaX(m_(2), NaCl(m_(3)|AgCl|Ag|Pt is found that the value of `E-E^(@) + RTF^(-1)` in `[(m_(HX).mCl^(-))/(m_(X^(-)))]` approaches 0.2814 in the limit of zero concentration. Calcualte `K_(a)` for the acid HX at `25^(@)C` expressing your answer as `10^(7)`K_(a)`

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