Home
Class 12
CHEMISTRY
An electric current is passed through th...

An electric current is passed through three cells in series containing respectively solutions of copper sulphate, silver nitrate and potassium iodide. What weights of silver and iodine will be liberated while 1.25 g of copper is being deposited ?

Text Solution

Verified by Experts

`("Wt. of copper")/("Wt. of Iodine")=("Eqvt. Wt. copper")/("Eqvt. Wt. of Iodine")`
`"or "(1.25)/(x)=(31.7)/(127)," "x=(1.25xx127)/(31.7)`
Hence, Wt. of Iodine x = 5.0 g of iodine
`"Also, "("Wt. of Copper")/("Wt. of Silver")=(1.25)/(y)`
`=("Eqvt. wt. of Cu(= 31.7)")/("Eqvt. wt. of Silver( = 108)")`
`"Wt. of silver (y) "=(108xx1.25)/(31.7)`
= 4.26g
Promotional Banner

Similar Questions

Explore conceptually related problems

0.1 Faraday of current was passed through the electrolytic cell placed in series containing solutions of Ag^(+), Ni^(2+) and Cr^(3+) respectively. The amount of Ag, Ni and Cr deposited will be (at. Mass, Ag=108, Ni=59, Cr=52 )

Two platinum electrodes were immersed in a solution of cupric sulphate and electric current passed through the solution. After some time it was found that the colour of copper sulphate disappeared with evolution of gas at the electrode. The colourless solution contains

Same amount of electric current is passed through solutions of AgNO_(3) and HCl. If 1.08g of silver is obtained in the first case, the amount of hydrogen liberated at S.T.P. in the second case is

What is the co-ordination entity formed when excess of aqueous KCN is added to an aqueous solution of copper sulphate ? Why is that no precipitate of copper sulphide is obtained when H_2 S(g) is passed through this solution ?

On passing 3 faraday of electricity through the three electrolytic cells connected in series containing Ag^+ , Ca^(2+) and Al^(3+) ions respectively. The molar ratio in which the three metal ions are liberated at the electron is

A current flowing through divalent copper plating bath and a silver plating bath in series deposits 0.400 g of Cu in 10 minutes. How much silver is deposited ? Atomic wt. of silver is 108 and copper is 63.54.