Question

A solution has a [OH-] of 1.43x10-9. What is the pH of this solution?

a. 5.2
b. 8.8
C. 9.1
d. 4.9

Answer 1

a. 5.2

Step-by-step explanation:

pOH = -log(1.43 x 10^-9) = 8.845

pH = 14 - pOH = 14 - 8.845 = 5.155 ≈ 5.2