<u>Answer:</u> The value of equilibrium constant is
<u>Explanation:</u>
We are given:
Percent degree of dissociation = 3.0 %
Degree of dissociation, = 0.03
Concentration of weak acid ([HA]), c = 0.15 M
The chemical equation for the dissociation of weak acid follows:
<u>Initial:</u> c -
<u>At Eqllm:</u>
So, equilibrium concentration of HA =
Equilibrium concentration of
Equilibrium concentration of
The expression of for above equation follows:
Putting values in above equation, we get:
Hence, the value of equilibrium constant is