Question

A solution has [H3O+]=2.2x10-5 M. Use the ion product constant of water to find [OH-] of the solution.

Answer 1

The
`[OH^(-)]` of the solution is
`4.5*10^(-10)M`.

Step-by-step explanation:

`Kw=1.0*10^(-14)`

`Kw=[H_(3)O^(+)][OH^(-)]`

Rearrange the equation is as follows.

`[OH^(-)]=(kw)/([H_(3)O^(+)])`

`[OH^(-)]=(1.0*10^(-14))/(2.2*10^(-5))= 4.5*10^(-10)M`

Therefore, The
`[OH^(-)]` of the solution is
`4.5*10^(-10)M`.