explanation of the water solubility of carboxylic acids in terms of hydrogen bonding

reactions in aqueous conditions of carboxylic acids with metals and bases (including carbonates, metal oxides and alkalis)

Comparison of acidity of different carboxylic acids not required.
PAG7 (see 6.3.1c)

esterification of:

(i) carboxylic acids with alcohols in the presence of an acid catalyst (e.g. concentrated H₂SO₄)
(ii) acid anhydrides with alcohols

hydrolysis of esters:

(i) in hot aqueous acid to form carboxylic acids and alcohols
(ii) in hot aqueous alkali to form carboxylate salts and alcohols

the formation of acyl chlorides from carboxylic acids using SOCl₂

use of acyl chlorides in synthesis in formation of esters, carboxylic acids and primary and secondary amides.

Including esterification of phenol, which is not readily esterified by carboxylic acids.