If a solution has a pH of 2, how does its H⁺ ion concentration compare to a solution with a pH of 4?
A) It is 2 times higher.
B) It is 10 times higher.
C) It is 100 times higher.
D) It is 1000 times higher.

Question

Quizplus · Accepted Answer

The pH scale is logarithmic, meaning each whole number change represents a tenfold change in H⁺ ion concentration. A change from pH 4 to pH 2 is a decrease of 2 pH units, indicating the H⁺ concentration is 10^2 or 100 times higher in the pH 2 solution.

If a Solution Has a PH of 2, How Does