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Silver is electrolytically deposited on ...

Silver is electrolytically deposited on a metallic vessel of total surface area `900 c m^(2)` by passing a current of 0.5A for 2h. Calculate the thickness of silver deposited . Given, density of silver `=10.5 g c m^(-1)`. Atomic mass of silver = 108u, F = 96500 C ` "mol"^(-1)`

Text Solution

Verified by Experts

`Q = i t = 0.5 xx 2 xx 60 xx 60 = 3600 C`
`Ag^(+) + underset("(1F = 96500C)") ( e^(-)) rarr underset("108g") ( Ag)`
`:.` 96500 C of charge deposits 108 g Ag
`:.` 3600 C of charge will deposite Ag
`= ( 108 xx 3600)/( 96500) = 4.029`g
Thickness = `(" Mass")/(" Area" xx "density") = ( 4.029)/( 900 xx 10.5)`
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