The degree of ionisation of an acid HA is 0.00001 at 0.1 M concentration. Its dissociation constant

Question

The degree of ionisation of an acid HA is 0.00001 at 0.1 M concentration. Its dissociation constant will be

Professor PC Thomas Classes · Answer

(b) : $K_a=C \alpha^2=0.1 	imes\left(10^{-5}ight)^2=10^{-11}$