How much more acidic is a substance with a pH of 5 than a substance with a pH of 6?
A) 30 times
B) 5 times
C) 2 times
D) 10 times

Question

Quizplus · Accepted Answer

The pH scale is logarithmic, meaning that each number represents a 10-fold difference in acidity or alkalinity. Therefore, a substance with a pH of 5 is 10 times more acidic than a substance with a pH of 6. So, option D - 10 times is the correct answer.

How Much More Acidic Is a Substance with a PH