A Solution with a PH of _____ is _____ Times

Question

A solution with a pH of _____ is _____ times more acidic than a solution with a pH of _____.
A)3; 10,000; 7
B)12; 100; 10
C)7; 1,000; 9
D)4; 10; 3

Accepted Answer

The pH scale is logarithmic, so a change of one pH unit represents a tenfold change in acidity. Therefore, a solution with a pH of 3 is 10,000 times more acidic than a solution with a pH of 7 (10^4 = 10,000).