Equinormal solutions of two weak acids `HA(pK_(a)=3)` and `HB(pK_(a)=5)` are each placed in contact with standard hydrogen electrode at `25^(@)C(T=298K)` when a cell is constructed by interconnecting them through a salt bridge find the e.m.f. of the cell.

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.

If hydrogen electrodes dipped in two solutions of pH=3 and pH=6 are connected by a salt bridge, the EMF_(cell) is

A hydrogen electrode X was placed in a buffer solution of sodium acetate and acetic acid in the ratio a:n and another hydrogen electode Y was placed in a buffer solution of sodium acetate and acetic acid in the ratio b:a . If reduction potential values for two cells are found to be E_(1) and E_(2) respectively w.r.t standard hydrogen electrode, the pK_(a) value of the acid can be given as:

A hydrogen electrode X was placed in a buffer solution of sodium acetate ad acetic acid in the ratio a:b and another hydrogen electrode Y was placed in a buffer solution of sodium acetate ad acetic in the ratio b:a if reduction potential values for two cells are found to be E_(1) and E_(2) respectively w.r.t. standard hydrogen electrode, the pK_(a) value of the acid can be given as (A) (E_(1)-E_(2))/(0.118) (B). -(E_(1)+E_(2))/(0.118) (C). (E_(1))/(E_(2))xx0.118 (D). (E_(2)-E_(1))/(0.118)

A silver electrode dipping in AgNO_(3) solution (0.1M) is combined salt bridge with a hydrogen electrode dipping in a solution of pH=3(at 25^(@)C) . If the standard reduction potential of the silver electrode is 0.799V , what is the EMF of the cell ?