Top topic this week
Questions asked by users might not always be phrased in the clearest way.
The concentration of H+ ions in a solution with a pH of 4.398 can be calculated using the following equation:
[H+] = 10^-pH
Therefore, the concentration of H+ ions is:
[H+] = 10^-4.398 = 4.01 x 10^-5 mol/dm3