Question

In a NaOH solution, [OH-] is 2.0 x 10-4 M. Calculate the pH of the solution at 25oC.

Answer 1

Answer:

Since NaOH is a strong base it will completely ionize. Therefore, if the molarity of the solution is 2.9x10^4 , the concentration of OH ions will be 2.9x10^-4. The pH of this NaOH solution is 24–3.54 = 10.46.