The pH of a strong acid solution is always lower than the pH of a weak acid solution. If this is true, explain why and include an example with calculations. If it is false, explain why and include a counterexample with calculations.

Question

Quizplus · Accepted Answer

The pH of an acid solution depends on both the concentration and the strength of the acid. A strong acid like HCl at a low concentration (e.g., 0.001 M) can have a higher pH than a concentrated weak acid like acetic acid (e.g., 1 M). For example, 0.001 M HCl has a pH of 3, while 1 M acetic acid has a pH of about 2.4.

The PH of a Strong Acid Solution Is Always Lower