Question

How long in hour must a current of 0.60 ampere be maintained to electroplate 66g of gold from a solution of gold chloride?

Answer 1

Here,
I=0.60 amp.; A=197; n=3; W=66g; F=96500C; t=?

So, W=A/nF×I×t
So, 66=197×0.6×t/3×96500
So, t=66×3×96500/197×0.6 sec=66×3×96500/197×0.6×3600 hr=44.9 hr.
Hope it helps.....
Cheers

Answer 2

Hey mate!

Here's your answer!!

Given,

I=0.60 amp.; A=197; n=3; W=66g; F=96500C

To find,

t=?

We know that,

W=A/nF×I×t

So, 66 = 197 × 0.6 × t/3 × 96500

So, t = 66 × 3 × 96500/197 × 0.6

t = 66 × 3 × 96500/197 × 0.6×3600 hr
= 44.9 hr

Hope it helps you!!!