How are carboxylic acids formed? What is the general formula of a carboxylic acid? Carboxylic AcidsCarboxylic acids is another family of non-hydrocarbons, containing the elements carbon, hydrogen and oxygen. The general formula of the carboxylic acid family is CnH2n+1COOH, where n = 0, 1, 2, 3,...The –COOH group is the functional group of … [Read more...] about How are carboxylic acids formed?