Question

What is the pH of a solution that has a [H+] of 1.5 × 10−5 M?

Answer 1

pH = 4.82

[H⁺] = 1.5 × 10⁻⁵ mol·L⁻¹.

pH = -log[H⁺] = -log(1.5 × 10⁻⁵) = 4.82