Question

One of the most commonly used compounds in the chlorination of swimming pools is sodium hypochlorite, `NaClO.` Once dissolved, an equilibrium is established between `ClO^-` and its conjugate acid. What is the equation of this reaction?

Answer 1

`ClO^(-) + H_2O(l) rightleftharpoonsHOCl(aq) + HO^-`

Explanation:

As always the conjugate acid is the original species PLUS a PROTON.

For..

`ClO^(-) + H_2O(l) rightleftharpoonsHOCl(aq) + HO^-`

`K_"eq"=([HO^-][HOCl(aq)])/([ClO^-])=10^(-6.47)=3.38xx10^-7`