A certain current liberated 0.504 g of hydro | vedclass

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(B) According to Faraday's second law of electrolysis,the mass of different substances liberated by the same quantity of electricity is proportional t

Vedclass · Accepted Answer

$15.9$

Vedclass · Answer

(B) According to Faraday's second law of electrolysis,the mass of different substances liberated by the same quantity of electricity is proportional to their equivalent weights.$\frac{	ext{Weight of } Cu}{	ext{Weight of } H_2} = \frac{	ext{Equivalent weight of } Cu}{	ext{Equivalent weight of } H}$Given:Weight of $H_2 = 0.504 \ g$Equivalent weight of $H = 1$Equivalent weight of $Cu = \frac{63.5}{2} = 31.75$$\frac{	ext{Weight of } Cu}{0.504} = \frac{31.75}{1}$$	ext{Weight of } Cu = 0.504 	imes 31.75 = 15.999 \approx 16.0 \ g$Rounding to the nearest provided option,the correct answer is $15.9 \ g$.

$A$ certain current liberated $0.504 \ g$ of hydrogen in $2 \ hours$. How many grams of copper can be liberated by the same current flowing for the same time in a copper sulphate solution?

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