POH

Definition

pOH is a measure of the concentration of hydroxide ions (OH-) in a solution. Like pH, it also uses a scale from 0 to 14 but inversely related to pH - lower pOH values indicate more basic solutions and higher values indicate more acidic solutions.

Related terms

Hydroxide Ion: A negatively charged molecule made up of one oxygen bonded to one hydrogen.

Acidic Solution:

A solution with a pH less than 7.

Basic Solution:

A solution with a pH greater than 7.