Question

What is the PH of a 7.5x10^-3 M OH solution

Answer 1

pH: 11.8750612634
pOH: 2.12493873661
[H+]: 1.33333333333E-12
[OH-]: 0.0075
BASE

Answer 2

Answer : The pH of a solution is, 11.88

Explanation: Given,

Concentration of
`OH^-` ion =
`7.5* 10^(-3)M`

First we have to calculate the pOH.

Formula used :

`pOH=-\log [OH^-]`

`pOH=-\log (7.5* 10^(-3))`

`pOH=2.12`

Now we have to calculate the pH.

Formula used :

`pH+pOH=14\\\\pH=14-pOH\\\\pH=14-2.12=11.88`

Therefore, the pH of a solution is, 11.88