A student prepares 0.5 M solution each of hydrochloric and ethanoic acids and then measured pH. The result would show that the?

Answer Details

When a student prepares 0.5 M solutions of hydrochloric acid (HCl) and ethanoic acid (CH3COOH) and measures their pH, the result would show that the ethanoic acid solution has a higher pH than the hydrochloric acid solution. This is because ethanoic acid is a weak acid, which means it does not fully dissociate into its ions in water, resulting in fewer hydrogen ions (H+) being released into solution. On the other hand, hydrochloric acid is a strong acid and fully dissociates into its ions, resulting in a higher concentration of H+ ions in solution and a lower pH. The sum of the pH values is not necessarily 14, and this information cannot be determined from the question.