# What is the concentration of HCl if its pH is 3?

##### 2 Answers

Apr 29, 2018

#### Explanation:

To find the concentration of something that dissociates into

So this becomes:

Apr 30, 2018

#### Explanation:

The

#[H^+]# is the hydrogen ion concentration in terms of molarity

The dissociation equation for hydrochloric acid is:

So, one mole of hydrochloric acid contains one mole of hydrogen ions.

Therefore, the hydrogen ion concentration will be,