Question

What is the pH of a solution that has a concentration of 1 X 10-3 hydrogen ions?

Answer 1

Given :

Concentration of hydrogen ions, $H^+ = 10^{-3} \ ions$.

To Find :

The pH of a solution.

Solution :

We know, pH of a solution is given by :

$pH = - log [ H^+]\\\\pH = -log ( 10^{-3})\\\\pH = 3$

Therefore, the pH of the solution is 3 .