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Two weak acid solutions HA(1) and HA(2) ...

Two weak acid solutions `HA_(1)` and `HA_(2)` with the same concentration and having `pK_(a)` values 3 and 5 are placed in contact with hydrogen electrode `(1 atm ` and `25^(@)C)` and are interconnected through a salt bridge. Find the `EMF` of the cell.

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