Question

One gram of Sn was electroplated from a SnCl, solution in 30 minutes. What was the current used?

Answer 1

0.903 A

Step-by-step explanation:

We have given mass of Sn = 1 gram

Time t=30 minutes=30×60=1800 sec

According to Faraday law m=zit

Where z is electron chemical equivalent

z is calculated by
`z=(atomic\ mass)/(nF)` where n is number of element and F is Faraday constant

So
`z=(atomic\ mass)/(nF)=(118.71)/(2* 96500)=0.000615`

So
`1=0.000615* i* 1800`

i =0.903 A