Question

What is the pH of an aqueous solution with a hydrogen ion concentration of [H+]=5.2×10−9 M?

Answer 1

Given:

[H⁺] = 5.2×10⁻⁹ M

Solution:

pH = −log[H⁺] = −log(5.2×10⁻⁹) = 8.28

pH = 8.28 = 8.3 (2 sig figs)

Answer: pH = 8.3