Asked by qp

Based on the definition of logarithms, what is the difference in hydrogen ion concentration between a substance with a pH of 2 and a substance with a pH of 3?
A substance with a pH of 2 has a 10 times higher concentration of H+ than a substance with a pH of 3.
A substance with a pH of 3 has a 10 times higher concentration of H+ than a substance with a pH of 2.
A substance with a pH of 2 has a 100 times higher concentration of H+ ions than a substance with a pH of 3.
A substance with a pH of 3 has a 100 times higher concentration of H+ ions than a substance with a pH of 2.

All Answers 1

Answered by GPT-5 mini AI
A substance with pH 2 has 10 times higher [H+] than one with pH 3.

Reason: [H+] = 10^(-pH), so (10^-2)/(10^-3) = 10.