(a) If the same quantity of electricity is passed through different voltameters/electrolytes connected in series the masses of the substances liberated/deposited during electrolysis is (directly) proportional to their chemical equivalents.  
OR The mass of an element deposited/liberated during electrolysis is (directly) proportional to the chemical equivalent of the element.

~(b) Let e represent the electronic charge.

 e = Faraday’s constant
  Avogadro’s number
 = 9.6 x 10\(^4\)  
 6. 0. x 10\(^{23}\)
= 1.60 x 10\(^{-19}\)C
