Question

What is the pH of a solution when the [OH - ] = 1 x 10 -3

Answer 1

The pH is 11

Step-by-step explanation:

Because pH + pOH = 14

and pOH = - log [OH⁻] = - log (1 x 10⁻³) = 3

we can now calculate pH by manipulating equation one above

pH = 14 - pOH = 14 - 3 = 11

Thus the pH of the solution is 11