Question

12. Formic acid (HCOOH) is an irritating chemical present in the venom of some ant species and in the secretion released from some stinging nettles.

a. Draw the Lewis structure of formic acid. Include double bond(s) and lone pair(s).

b. Formic acid can form dimers in which two molecules are paired by mutual hydrogen bonding. Draw a dimer of formic acid, clearly showing and labeling the hydrogen bonds between molecules.

c. Formic acid may deprotonate to form the formate ion (HCOO- ). Draw the Lewis structure of the formate ion and illustrate the concept of resonance.

Answer 1