Calculate the potential of hydrogen electrode in contact with a solution whose pH is 10.

State the relationship amongst cell constant of a cell, resistance of the solution in the cell and conductivity of the solution. How is molar conductivity of a solution related to conductivity of its solution?

A voltaic cell is set up at 25^◦C with the following half cell;

Al / Al³⁺ (0.001 M) and Ni /Ni²⁺ (0.50 M)

Calculate the cell voltage. [ E^◦ Ni²⁺/Ni = - 0.25V, E^◦Al³⁺/Al = -1.66V]

State Faraday’s laws of electrolysis. How much charge in terms of Faraday is required for reduction of 1 mol of Cr₂O₇^2- to Cr³⁺ ?

Is the variability in oxidation number of transition elements different from that of non – transition elements? Illustrate with examples.