Partial answers are given. The structure, however, may be missing one or more charges. Convert this structural formula to a Lewis structure by adding nonbonding electron pairs. Also assign any missing charges.
Local anesthetics work by partitioning into the membrane and binding to sodium channel proteins.
In so doing, they inhibit the flux of sodium thereby preventing a pain response. There should be only five nonbonding electron pairs. There is one acid function and one base function. For example, the pK a of the tertiary amine group in Novocain is 7. A lower pK a always implies a stronger acid.