The pH scale is used to specify the acidity or alkalinity of a solution.Which of the following statements is true?
A)Stomach acid has a pH around 10.
B)Neutral solutions, like water, have a pH of 10.
C)A solution with a pH of 12 has 10 times less protons than a solution with a pH of 11.
D)A strong base will have a pH less than 10.

Question

Quizplus · Accepted Answer

The pH scale ranges from 0 to 14, where 0 is the most acidic and 14 is the most alkaline. A pH of 7 is considered neutral, which is the pH of pure water. The lower the pH value, the more acidic the solution, and the higher the pH value, the more alkaline the solution. The pH scale is logarithmic, meaning that each unit represents a tenfold change in the concentration of protons. Therefore, a solution with a pH of 12 has 10 times less protons than a solution with a pH of 11. Stomach acid has a pH of around 1 to 2, which is highly acidic, while a strong base will have a pH greater than 10, not less.

The PH Scale Is Used to Specify the Acidity or Alkalinity