How can carboxylic acids be named according to the IUPAC nomenclature system?

Carboxylic acids are named in the IUPAC nomenclature system by replacing the -e at the end of the parent alkane name with -oic acid. The carbon in the carboxyl group is assigned the number 1 in the chain, and the longest carbon chain containing the carboxyl group is used as the parent chain. Substituents are named and numbered based on their position in the chain.