Explanation:
Chemical formula of hexanoic acid is [tex]CH_{3}CH_{2}CH_{2}CH_{2}CH_{2}COOH[/tex]. According to Bronsted-Lowry, acid upon dissociation gives conjugate base and base upon dissociation gives conjugate acid.
Hexanoic acid will dissociates as follows.
[tex]CH_{3}CH_{2}CH_{2}CH_{2}CH_{2}COOH \rightarrow CH_{3}CH_{2}CH_{2}CH_{2}CH_{2}COO^{-} + H^{+}[/tex]
Therefore, we can conclude that conjugate acid of hexanoic acid is [tex]CH_{3}CH_{2}CH_{2}CH_{2}CH_{2}COO^{-}[/tex]