In the following pairs of molecules, predict which one of the molecules in the p

Question

In the following pairs of molecules, predict which one of the molecules in the pair would have the higher boiling point by naming the strongest attractive force present in each molecule.

1. Which has the higher boiling point: CH4 or H2O?

2. The strongest force in CH4 is:

ionic attractions

3. NH3 or CO2 Which has the highest boiling point?

4. The strongest force of NH3?

5. The strongest force in CO2?

dipole-dipole attractions

6. Which has the highest boiling point? KCl and CH3OCH3

7. The strongest force of KCl?

London forces

8. The strongest force in CH3OCH3

dipole-dipole attractions hydrogen bonding London forces

ionic attractions

3. NH3 or CO2 Which has the highest boiling point?

4. The strongest force of NH3?

hydrogen bonding London forces dipole-dipole attractions ionic attractions

5. The strongest force in CO2?

hydrogen bonding London forces ionic attractions

dipole-dipole attractions

6. Which has the highest boiling point? KCl and CH3OCH3

7. The strongest force of KCl?

dipole-dipole attractions hydrogen bonding ionic attractions

London forces

8. The strongest force in CH3OCH3

dipole-dipole attractions London forces hydrogen bonding ionic attractions

Explanation / Answer

1. Which has the higher boiling point

: CH4 < H2O

2. The strongest force in CH4 is:

ionic attractions

3. NH3 > CO2 has the highest boiling point?

4. The strongest force of NH3?

5. The strongest force in CO2?

dipole-dipole attractions

6. Which has the highest boiling point

KCl < CH3OCH3

7. The strongest force of KCl?

London forces

8. The strongest force in CH3OCH3

dipole-dipole attractions hydrogen bonding London forces

ionic attractions

3. NH3 > CO2 has the highest boiling point?

4. The strongest force of NH3?

hydrogen bonding London forces dipole-dipole attractions ionic attractions

5. The strongest force in CO2?

hydrogen bonding London forces ionic attractions

dipole-dipole attractions

6. Which has the highest boiling point

KCl < CH3OCH3

7. The strongest force of KCl?

dipole-dipole attractions hydrogen bonding ionic attractions

London forces

8. The strongest force in CH3OCH3

dipole-dipole attractions London forces hydrogen bonding ionic attractions

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