Multiple choice

The difference between a solution with a pH of 9 and one with a pH of 8?

  1. the pH of 9 has more hydronium ions than the pH of 8

  2. the pH of 9 has less hydronium ions than the pH of 8

  3. the pH of 8 has more hydronium ions than the pH of 9
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The pH scale is logarithmic; a lower pH indicates a higher concentration of hydronium ions. Therefore, a pH of 8 has 10 times more hydronium ions than a pH of 9.

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