Home
Class 12
CHEMISTRY
The volume of gases evolved at STP by pa...

The volume of gases evolved at `STP` by passing `0.1A` of current for `965g`, through an aqueous solution of potassium acetate

A

`22.4mL`

B

`11.2mL`

C

`89.6mL`

D

`44.8mL`

Text Solution

Verified by Experts

The correct Answer is:
d
`CH_(3)COOK rarr CH_(3)OO^(c-)+K^(o+)`
At cathode, `H_(2)O` undergoes reduction of give `H_(2)`.
`H_(2)O+2e^(-) rarr 2overset(c-)(O)H+H_(2)`
`2F-=1 mol of H_(2)`
At anode,
`2CH_(3)COO^(e)rarrunderset(underset(CH_(3)-CH_(3)+2CO_(2))(darr))(2CHOO^(*)+2e^(-))`
`2F-=1 mol of C_(2)H_(6)` and `2 mol of CO_(2)`
Total volume at cathode and anode
`=4 mol =4xx22.4L`
`2F=2xx96500Cimplies4xx22.4L`
`0.1xx965Cimplies(4xx22.4xx0.1xx965)/(2xx96500)`
`implies0.0448L=44.8 mL`
Promotional Banner

Similar Questions

Explore conceptually related problems

Find the volume of gases evolved by passing 0.1 A of current for 965s , through an aqueous solution of sodium succinate at 27^(@)C and 1 atm .

Calculate the volume of hydrogen at NTP obtained by passing a current of 0.4 ampere through acidified water for 30 minutes

Calculate the mass of hydrogen gas evolved by passing a current of 0.5 ampere for 40 minutes through acidified water.

Explain the following observations : (i) A beam of light passing through a colloidal solution has a visible path. (ii) Passing an electric current through a colloidal solution removes colloidal particles from it. (iii) Ferric hydroxide sol coagulates on addition of potassium sulphate,

A buffer solution contains 0.1 mole of sodium acetate dissolved in 1000 cm^(3) of 0.1 M acetic acid. To the above buffer solution, 0.1 mole of sodium acetate is further added and dissolved. The pH of the resulting buffer is