# Why is nitric acid (HNO_3) important?

May 23, 2017

It's a strong monoprotic acid.

#### Explanation:

Being a strong monoprotic acid, nitric acid will always undergo complete ionisation. This means that the concentration of acid is always the concentration of H+ ions is it only donuts one H+ ion per molecule. It is important to know the concentration of H+ ions as that allows you to calculate the pH of the solution.