PPT Slide

The pH Scale

• pH _ _log[H+] _ _log[H3O+]

• pH in water ranges from 0 to 14.

Kw = 1.00 _ 10_14 = [H+] [OH_]

pKw = 14.00 = pH + pOH

• As pH rises, pOH falls (sum = 14.00).

• There are no theoretical limits on the values of pH or pOH. (e.g. pH of 2.0 M HCl is -0.301)

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