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What is the time ( in sec ) required for...

What is the time ( in sec ) required for depositing all the silver present in `125 mL` of `1M AgNO_(3)` solution by passing a current of `241.25 A ? ( 1F=96500 C)`

A

10

B

50

C

1000

D

100

Text Solution

Verified by Experts

The correct Answer is:
2
Given,` 125mL` of `1MAgNO_(3)` solution. It means that
`:' 1000mL` of `AgNO_(3)` solution contains `=108g Ag`
`:. 125mL` of `AgNO_(3)` solution contains `=(108xx125)/(1000)gAg=13.5g Ag`
`:' 108g` of `Ag` is deposited by `=96500C`
`:. 13.5g` of `Ag` is deposited by `=96500/108xx13.5=12062.5C`
`Q=` it
or `t=Q/t=12062.5/241.25=50`
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