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'''Carboxylic acid''' is an [[organic molecule]] and an [[acid]] containing a carboxyl group, formula -COOH. They are a [[functional group]] present in both [[amino acids]] and [[fatty acid]]s.
Carboxylic acids are weak acids, and therefore dissociate incompletely in water, forming an equilibrium between the RCOOH molecule and the RCOO- and H+ ions.
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