Write the ka expression for an aqueous solution of hypochlorous acid:

Balanced chemical reaction (dissociation) of an aqueous solution of hypochlorous acid:

HClO (aq) ⇄ H⁺ (aq) + ClO⁻ (aq).

Ka = [H⁺] · [ClO⁻] / [HClO].

[H⁺] is equilibrium concentration of hydrogen cations or protons.

[ClO⁻] is equilibrium concentration of hypochlorite anions.

[HClO] is equilibrium concentration of hypochlorous acid.

Ka is t he acid dissociation constant.