Consider solution A (pH 6) and solution B (pH 9). Which of the following statements is CORRECT?
A) Solution A is 300 times more acidic than solution B.
B) Solution B is 1,000 times more alkaline (basic) than solution A.
C) Solution B is 3,000 times more alkaline (basic) than solution A.
D) Solution A is 3 times more acidic than solution B.

Question

Quizplus · Accepted Answer

The pH scale is logarithmic, meaning each whole number change represents a tenfold change in acidity or alkalinity. Solution B (pH 9) is 1,000 times more alkaline than solution A (pH 6) because 10^(9-6) = 10^3 = 1,000.

Consider Solution a (PH 6) and Solution B (PH 9)