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A weak monobasic acid is 1% ionized in 0...

A weak monobasic acid is 1% ionized in 0.1 M solution at `25^@`C. The percentage of ionization in its 0.025 M solution is :

A

1

B

2

C

3

D

4

Text Solution

Verified by Experts

The correct Answer is:
B
`HA hArr H^(+)+A^(-)`
`K = Calpha^(2) = 0.1(1/100)^(2),K = 10^(-5)`
`K = Calpha^(2) " or " 10^(-5) = 0.025 xx alpha^(2)`
`alpha = sqrt((10^(-5))/(0.025))rArr alpha = 0.02 `
% age of ionization = 2.
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