One type of acid-base buffer is composed of a weak acid , which will react with any added base, and its conjugate base, which will react with any added acid.
The buffer's weak base and strong acid combine to form a weak acid, which changes the pH only little and releases few H ions into solution.
A weak acid and the conjugate base of the weak acid, or a weak base and the conjugate acid of the weak base, are combined to form the buffer solution, a water-based solvent solution.
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