1. Home
  2. Science
  3. What is pH?

What is pH?

“pH” means the symbol for the negative logarithm of the hydrogen ion concentration, which is a measure of the degree of acidity or alkalinity of a solution.

Values between 0 and 7 indicate acidity and values between 7 and 14 indicate alkalinity. The value for pure distilled water is 7, which is considered neutral.

Updated on March 21, 2019

Was this article helpful?

Related Articles