What mass of zinc can be produced by the electrolysis of zinc sulphate solution when a current of 1.5 amperes is passed for 15 mnutes ? Atomic mass of zinc =65.4 `a.m.u.`

What mass of zinc can be produced by the electrolysis of zinc sulphate solution when a current of 1.5 amperes is passed for 15 minutes ? The atomic mass of zinc=65.4 amu.

A solution of copper sulphate is electrolysed for 10 minutes with a current of 1.5 amperes. What is the mass of copper deposited at cathode ? The atomic mass of copper = 63.5 a.m.u.

The amount of electricity which release 2.0g of gold from a gold salt is same as that which dissolves 0.967g of copper anode during the electrolysis of copper sulphate solution. What is the oxidation number of gold in the gold ion ? (At mass of Cu=63.5,Au=197)

A solution of CuSO_4 is electrolysed for 10 minutes with a current of 1.5 amperes. What is the mass of copper deposited at the cathode?

Three conductivity cells A, B and C containing solutions of zinc sulphate, silver nitrate and copper sulphate respectively are connected in series. A steady current of 1.5 amperes is passed through them until 1.45 g of silver is deposited at the cathode of cell B. How long did the current flow ? What mass of copper and what mass of zinc got deposited in their respective cells ? (Atomic mass : Zn = 65.4 u, Ag = 108 u, Cu = 63.5 u)

What happens when zinc rod is placed in copper sulphate solution? Give chemical equation for the reaction.

Cadmium amalgam is prepared by electrolysis of a sodium of CdCl_2 using a mercury cathode. How long should a current of 4 A be passed in order to prepare 10% by mass Cd in Cd-Hg amalgam on cathode of 4.5 g Hg? (atomic mass of Cd=112)

Al_2O_3 is reduced by elecrrolysis at low potentals and high current. If 4.0xx10^4 amperes of current is passed through molten Al_2O_3 for 6 hours, what mass of aluminium is produced?

what happen when a piece of zinc is added to copper sulphate solution?