Question

Calculate the time to deposit 1.17g of nickel at cathode when 5a current was passed in ni(no3)2

Answer 1

Answer:

Moles of ni=117*10/58.5*100=1/50=0.02mol

:. Ni^+2+2electron------Ni

Q=IT

T=Q/I

=0.02*96500*2/5*100=772sec

=12mimute 52 sec

:.1F=96500C/mol