What is the pH?

Question

Calculate the pH of a 2.30 x 10-7 M NaOH solution.

Answer 1

ph = -log [H+]

since we are given NaOH as our start, a strong base, we are dealing with an OH concentration and need to convert it

pOH= -log [OH-]

= 6.64

pH= 14-pOH

= 14-6.64

pH = 7.36