PRACTICE:Which of the following pairs of molecules would have the highest boiling point?
2. Molecular Representations
Intermolecular Forces
- Multiple Choice
- Multiple Choice
PRACTICE:Which of the following pairs of molecules would have the highest boiling point?
- Multiple ChoiceWhich molecule is nonpolar?
- Multiple ChoiceWhy do branched alkanes have a lower boiling point than linear alkanes with the same molecular formula?
- Multiple ChoiceWhich property of halogens accounts for the observed trends in physical properties such as melting point, boiling point, and dipole moment?
- Multiple ChoiceRank the following molecules in order of increasing melting point (lowest mp to highest mp).
- Multiple ChoicePredict the molecule in each series with the higher boiling point.
- Textbook Question
Predict which compound in each pair has the higher boiling point. Explain your prediction.
(c) CH3CH2CH2CH2CH3 or (CH3)2CH2CH2CH3
(d) CH3CH2CH2CH2CH3 or CH3CH2CH2CH2CH2Cl
- Textbook Question
Predict which compound in each pair has the higher boiling point. Explain your prediction.
(a) CH3CH2OCH3 or CH3CH(OH)CH3
(b) CH3CH2CH2CH3 or CH3CH2CH2CH2CH3
- Textbook Question
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
- Textbook Question
Draw the hydrogen bonding that takes place between
a. two molecules of ethanol.
b. two molecules of propylamine.
- Textbook Question
For each pair of compounds, circle the compound you expect to have the higher boiling point. Explain your reasoning.
a. (CH3)3C—C(CH3)3 or (CH3)2CH—CH2CH2—CH(CH3)2
b. CH3(CH2)6CH3 or CH3(CH2)5CH2OH
c. CH3CH2OCH2CH3 or CH3CH2CH2CH2OH
- Textbook Question
Predict which compound in each pair has the higher boiling point. Explain your prediction.
(e)
(f)
- Textbook Question
Draw the hydrogen bonding that takes place between
c. a molecule of dimethyl ether and two molecules of water.
d. two molecules of trimethylamine and a molecule of water.
- Textbook Question
Diethyl ether and butan-1-ol are isomers, and they have similar solubilities in water. Their boiling points are very different, however. Explain why these two compounds have similar solubility properties but dramatically different boiling points.