Ionization of Weak Bases

The ionization of weak bases (BOH) can be expressed as:

BOH (aq) ⇌ B⁺ (aq) + OH^- (aq)

The equilibrium constant expression for the reaction is

The constant K_b is called dissociation constant of the base. It gives the idea about the relative strengths of weak bases. Higher the value of K_b the stronger is the base.