question_answer

Calculate the electrode potential at \[{{298}^{o}}K\] for \[Zn|Z{{n}^{++}}\]electrode in which the activity of zinc ions is 0.001 M and \[{{E}^{o}}_{Zn/Z{{n}^{++}}}\]is ?0.74 volts            [AMU 2002]

A)                 0. 38 volts           

B)                 0.83 volts

C)                 0.40 volts            

D)                 0.45 volts