4:35 (Triple only) understand how to draw structural and displayed formulae for unbranched- chain carboxylic acids with up to four carbon atoms in the molecule, and name each compound
The four simplest carboxylic acids are methanoic acid, ethanoic acid, propanoic acid and butanoic acid.
Methanoic acid
Displayed formula:
Molecular formula: CH₂O₂
Structural formula: HCOOH
Ethanoic acid
Displayed formula:
Molecular formula: C₂H₄O₂
Structural formula: CH₃COOH
Propanoic acid
Displayed formula:
Molecular formula: C₃H₆O₂
Structural formula: CH₃CH₂COOH
Butanoic acid
Displayed formula:
Molecular formula: C₄H₈O₂
Structural formula: CH₃CH₂CH₂COOH