Question

number of electrons involved in the electrodeposition of63.5g cu from a solution of copper sulphate ​

Answer 1

Explanation:

(oxidation number of Cu)+ (oxidation number of S) + 4(oxidation number of oxygen) = 0

(oxidation number of Cu) + (6) + 4(-2) = 0

oxidation number Cu = 2+

CuSO4 ---> Cu + SO42-

Cu2+ + SO42- ----> Cu + SO42-

Cu2+ -----> Cu + 2e- (net ionic reaction)

The stoichiometric equation would be 2 electrons per mole Copper. Copper has a molar mass of 63.5 g/mol.

Then, it would only need 2 electrons.