SEARCH Articles Figures Tables Autoionization of Water and the pH Scale Concentration, the pH Scale, and Indicators Molarity and the pH Scale PH scale Selection of the pH scale Self-Ionization of Water and the pH Scale The 6 scale The pH Scale A Way to Quantify Acidity and Basicity The pH Scale Is Used to Describe Acidity The pH and pOH Scales The pH scale and acid strength Water and the pH Scale