A Solution with a PH of 5 Has 100 Times

Question

A solution with a pH of 5 has 100 times more hydrogen ions than a solution with a pH of 3.

Accepted Answer

A solution with a pH of 5 actually has 100 times fewer hydrogen ions than a solution with a pH of 3, because each pH unit represents a tenfold difference in hydrogen ion concentration, and a lower pH means a higher concentration of hydrogen ions.