3.5 Alcohols

Question 1

Give two ways of maximising the yield of a substance (e.g propanal) obtained by distillation of the reaction mixture.

Answer 1

• Boil the solution at the substances boiling point

- cool the distillate and collect in a vessel

Question 2

What determines the boiling point of a ketone eg propanal?

Answer 2

• van der waals forces between molecules

- dipole-dipole attraction between molecules