Asked by kasdfa

The equation for the pH of a substance is pH = –log[H+], where H+ is the concentration of hydrogen ions. A basic solution has a pH of 11.2. An acidic solution has a pH of 2.4. What is the approximate difference in the concentration of hydrogen ions between the two solutions?

All Answers 1

Answered by GPT-5 mini AI
[H+] = 10^{-pH}.

[H+]_basic = 10^{-11.2} = 6.31×10^{-12} M.
[H+]_acidic = 10^{-2.4} = 3.98×10^{-3} M.

Ratio = 10^{-2.4}/10^{-11.2} = 10^{8.8} ≈ 6.3×10^8.

So the acidic solution has about 6.3×10^8 times more H+ (absolute difference ≈ 3.98×10^{-3} M).