Question
Show that for an aqueous solution of a salt of weak base and strong acid where
is the degree of hydrolysis.
Solution
Let the salt of weak base and strong acid be XY and hydrolysis reaction represented as:

Let c be the initial concentration of the salt and a be the degree of hydrolysis. At equilibrium, the concentration of various species is represented as:
X+ + H2O
XOH + H+
Initial conc. c 0 0
Equilibrium
conc.


Since
is very small as compared to unity.

Let c be the initial concentration of the salt and a be the degree of hydrolysis. At equilibrium, the concentration of various species is represented as:
X+ + H2O

Initial conc. c 0 0
Equilibrium
conc.




Since

