Question

Nickel can be planted from aqueous solution according to the following half reaction. How long would it take (in min) to plate 29.6 g of nickel at 4.7 A?

Answer 1

Answer:

Time=345.7 min

Explanation:

It is an example for Faraday's first law of Electrolysis

It states that the amount of substance deposited is directly proportional to the amount of electricity passed.

W=Zit

Z=E/96500

W= E it/96500

And E=58.7(molar mass of Ni)/2(charge on Ni)=29.3

t=W96500/E i

= 29.6x96500/29.3x4.7

= 20742.1 sec

=345.7 min