Two weak acid solution HA1 and HA2 each with same concentration and having Pka values 3 and 5 are placed in contact with hydrogen electrode ( 1 atm at 25 degree) and are interconnected through a salt bridge find the emf.

Consider the cell:

                        Pt H₂(1atm)IHA₂(1M) II HA₁(1M)IH₂(1 atm)Pt

               Given that    PKa₁ of HA₁ is = 3 (at Cathode)

                                      Pka₂ for HA₂ is = 5 (at anode)

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