Acid base equilibrium can be represented as:
ClO⁻ + H₂O ------> HClO + OH⁻
In this ClO⁻ reacts with water molecule that is H₂O, to form HClO and hydroxide ion that is OH⁻.
The equilibrium constant can be represented as:
K_{eq}=\frac{[HClO][OH^{-}]}{[ClO^{^{-}}]}
In equilibrium constant [HClO] represents concentration of HClO, while [OH⁻] represents concentration of [OH⁻] and [ClO⁻] represents concenytration of ClO⁻.