1.0.222g  of a divalent metal is deposited when a current of 0.45A is passed through a solution of its salt for 25minutes.Calculate the relative atomic mass of the metal.

1. Calculate the mass of aluminium deposited when a current of 3.0 amperes is passed through an aluminium electrolyte for 2 hours.(Al=27,1 Faraday=96500c).