A quantity of electricity was passed through three voltameters in series for 2 hours. In one, 5.4g of silver was deposited from silver trioxonitrate (V) solution. In the second, hydrogen gas was evolved from a solution of dilute silver tetraoxosulphate (VI) solution and in the third, aluminium was deposited from an aluminium trioxonitrate (V) solution. Calculate:
(1) the quantity of electricity passed
(2) the current passed
(3) the volume of Hydrogen collected at 27(degree)C and 720mmHg
(4) the mass of aluminium deposited.

[Ag = 108, Al = 27, H = 1, Faraday's constant = 96500C mol^-1, molar volume = 22.4dm³ at s. t.p]