Chemistry Question

Question

The [OH^–] in an aqueous solution is 4.0×10^-6 M. Find the [H⁺].

Answer 1

Recall that [H⁺][OH^-] = 1x10^-14

[H⁺][4.0x10^-6] = 1x10^-14

[H⁺] = 1x10^-14 / 4.0x10^-6

[H⁺] = 2.5x10^-9 M