Question

What is the hydrogen ion concentration of a solution with pH = 3.75?

Answer 1

`[H_3O^+]` `=` `10^(-3.75)*mol*L^-1`

Explanation:

`pH` `=` `-log_10[H_3O^+]` by definition.

So we take antilogs, `[H_3O^+] = 10^(-3.75)` `=` `??`