Which solution will have the lowest pH?*1 point0.100 mol dm⁻³ NaOH(aq)0.100 mol dm⁻³ HCl(aq)0.100 mol dm⁻³ CH₃COOH(aq)0.100 mol dm⁻³ H₂SO₄(aq)

The pH of a solution is determined by the concentration of hydrogen ions (H+) in the solution. The more H+ ions, the lower the pH, and the more acidic the solution is.

1. NaOH is a strong base, which means it will not contribute to the H+ ion concentration, but rather decrease it by producing OH- ions. So, it will have a high pH.

2. HCl is a strong acid, which means it will completely ionize in water to produce H+ ions. So, it will have a low pH.

3. CH₃COOH is a weak acid, which means it will not completely ionize in water, and therefore will not produce as many H+ ions as a strong acid of the same concentration. So, it will have a higher pH than the HCl solution, but lower than the NaOH solution.

4. H₂SO₄ is a strong acid, and it is diprotic, which means each molecule can produce two H+ ions. So, it will produce more H+ ions than the same concentration of HCl, and therefore will have a lower pH.

So, the solution with the lowest pH will be 0.100 mol dm⁻³ H₂SO₄(aq).