Answer:
21.89 g
Explanation:
i = 15 A
time = 80 minutes = 80 x 60 = 4800 second
Electro chemical equivalent of nickel, Z = 0.000304 gram per ampere second
Use the Faraday's law of electrolysis
m = z i t
where, m is the mass deposited, i be the current, z be the electro chemical equivalent and t be the time taken
m = 0.000304 x 15 x 4800
m = 21.89 g
Thus, the mass f nickel deposited is 21.89 g.
