Question

HCl is a strong acid. What is the pH of 100 mL of 0.003 M `HCl`?

Answer 1

`pH=2.52`

Explanation:

`pH=-log_10[H_3O^+]` `=` `-log_10(3xx10^-3)` `=` `-(-2.52)`.

The volume of the hydrochloric acid was included as a distractor. The concentration of `HCl` was the vital information.