Write the water equilibrium expression. Describe how the water equilibrium varies with pH.

Answer 1

The water equilibrium EXPRESSION:

Kw = [H+][OH-]

10^-14 = [H+][OH-]

When the ph is above 7 there is a larger concentration of OH-. When the ph is less than 7, there is a larger concentration of H+. When the ph = 7, the concentrations of both H + and OH- are equal.