A certain current liberated 0.504 g of hydro | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(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?

Similar Questions

When the same quantity of electricity is passed through electrolytic cells containing different electrolytes connected in series,the amount of products obtained at the various electrodes is proportional to their:

For the electrolytic decomposition of $18 \ g$ of $H_2O$,how many hours of current at $3 \ A$ must be passed?

In the electrolysis of water,one Faraday of electrical energy would evolve

When a current of $2 \ A$ is passed through a molten tin salt for $5 \ hours$,$22.2 \ g$ of tin is deposited. What is the oxidation state of tin in the salt? (Atomic weight of $Sn = 118.69$)

On passing $3 \ A$ of electricity for $50 \ minutes$,$1.8 \ g$ of metal deposits. The equivalent mass of the metal is:

Vedclass Test Series

Exam Paper Generator

Online Exam Module