The general formula of a carboxylic acid is RCOOH with R referring to the alkyl group. Carboxylic acids occur widely. The general formula is R-O-O-R.
A mixed or unsymmetrical anhydride is a carboxylic acid anhydride that has the following general structural formula.
Carboxylic acids is another family of non-hydrocarbons containing the elements carbon hydrogen and oxygen. In IUPAC Nomenclaturen 0 Methanoic acid. They occur widely in nature and are also synthetically manufactured by humans. The CO and O-H bonds are polar thus allowing them to form hydrogen bonds.