Question

What is the pH of a solution with a 2.20 × 10−8 M hydroxide ion concentration?

Answer 1

The pH of the solution is 6.35.

Step-by-step explanation:

Concentration of hydroxide ions =
`[OH^-]=2.20* 10^(-8) M`

pH + pOH = 14

pH = 14 - pOH

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

`pOH=-\log[2.20* 10^(-8) M]=7.65`

`pH=14-pOH=14-7.65=6.35`

The pH of the solution is 6.35.