Question

One faraday of electric current is passed the mass deposited is equal to

Answer 1

equal to the g-equivalent of any ion. 

Answer 2

Answer: Equivalent mass

Explanation:-

1 electron carry charge=$1.6\times 10^{-19}C$

1 mole of electrons contain=$6.023\times 10^{23}$ electrons

Thus  1 mole of electrons carry charge=$\frac{1.6\times 10^{-19}}{1}\times 6.023\times 10^{23}=96500C=1 Faraday$

$A^{n+}+ne^-\rightarrow A$

If n electrons are involved in the reaction, the passage of n Faradays i.e $(n\times 96500C)$ of electricity will liberate 1 mole or molecular mass of the substance.

1 Faraday of electricity will liberate=$\frac{\text {Molecular mass}}{n}$=Equivalent mass of the substance.