Buffer solution

Common card · No. 219137

A buffer solution is a solution whose pH does not change significantly on dilution or if a small amount of strong acid or base is added to it at constant temperature. Buffer capacity is used to measure the resistance to pH change of a buffer solution. Buffer solutions are used to maintain pH at a nearly constant value in a wide variety of chemical applications. In nature, many living systems use buffering to regulate pH. For example, the bicarbonate buffering system serves to regulate the pH of blood, and bicarbonate also acts as a buffer in the ocean.

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