2. Molecular Representations

PRACTICE:Which of the following pairs of molecules would have the highest boiling point?

PRACTICE:Which of the following pairs of molecules would have the highest boiling point?

PRACTICE:Which of the following pairs of molecules would have the highest boiling point?

PRACTICE:Which of the following pairs of molecules would have the highest boiling point?

Predict which compound in each pair has the higher boiling point. Explain your prediction.

(c) CH₃CH₂CH₂CH₂CH₃ or (CH₃)₂CH₂CH₂CH₃

(d) CH₃CH₂CH₂CH₂CH₃ or CH₃CH₂CH₂CH₂CH₂Cl

Predict which compound in each pair has the higher boiling point. Explain your prediction.

(a) CH₃CH₂OCH₃ or CH₃CH(OH)CH₃

(b) CH₃CH₂CH₂CH₃ or CH₃CH₂CH₂CH₂CH₃

Which of the following pure compounds can form hydrogen bonds? Which can form hydrogen bonds with water? Which ones do you expect to be soluble in water?

e. CH₃(CH₂)₃CH₃

f. CH₂=CH—CH₂CH₃

g. CH₃COCH₃

h. CH₃CH₂COOH

Draw the hydrogen bonding that takes place between

a. two molecules of ethanol.

b. two molecules of propylamine.