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Date: 26-12-2016
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Weak bases: Ammonia
Weak bases, like weak acids, react with water to establish an equilibrium system. Ammonia is a typical weak base. It reacts with water to form the ammonium ion and the hydroxide ion:
Like a weak acid, a weak base is only partially ionized. There’s a modified equilibrium constant expression for weak bases — the Kb. You use it exactly the same way you use the Ka (see Acetic acid and other weak acids” for the details), except you solve for the [OH–].
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