When molten lithium chloride (LiCl) is electrolysed, lithium metal is formed at the cathode. If current efficiency is 75% then how many grams of lithium are liberated when 1930 C charge pass through the cell? (Atomic mass of Li=7)

A current of 12 A is passed through an electrolytic cell containing aqueous NiSO_4 solution. Both Ni and H_2 gas are formed at the cathode. The current efficiency is 60%. What is the mass of nickel deposited on the cathode per hour?

A current of 12 A is passed through an electrolytic cell containing aqueous NiSO_4 solution. Both Ni and H_2 gas are formed at the cathode. The current efficiency is 60%. What is the mass of nickel deposited on the cathode per hour?

Lithium metal has a body centred cubic lattice structure with edge length of unit cell 352 pm. Calculate the density of lithium metal (Given : Atomic mass of Li = 7 g mol^(-1) )

A current of 10A is employed to plate nickel in NiSO_(4) bath. The current efficiency with respect to Ni plating is 60% . a. How many grams of Ni is plated on the cathode per hour ? b. What is the thickness of the plating if the cathode consists of a sheet of metal 4.0 cm^(2) which is coated on both faces ? c. What is the volume of H_(2)(STP) evolved during above electrolysis ?