Question

Equilibrium constant for weak acid and strong base

Answer 1

Strong acids and strong bases refer to species that completely dissociate to form ions in solution. By contrast, weak acids and bases ionize only partially, and the ionization reaction is reversible. Thus, weak acid and base solutions contain multiple charged and uncharged species in dynamic equilibrium.


Weak acids and weak bases do not dissociate completely. Equilibrium exists between the weak acid, water, H3O+, and the anion of the weak acid. The equilibrium lies to the left hand side of the equation, indicating that not much H3O+ is being produced.

Answer 2

Explanation:

For an aqueous solution of a weak acid, the dissociation constant is called the acid ionization constant (Ka). Similarly, the equilibrium constant for the reaction of a weak base with water is the base ionization constant (Kb). For any conjugate acid–base pair, KaKb=Kw.