Chapter 11 – Intermolecular Forces and Liquids and Solids
Chapter 11
Intermolecular Forces and Liquids and Solids
2. Which one of the following substances is expected to have the lowest melting point?
Chapter 11 – Intermolecular Forces and Liquids and Solids
3. Which one of the following substances is expected to have the highest boiling point?
4. Which one of the following substances is expected to have the highest melting point?
Chapter 11 – Intermolecular Forces and Liquids and Solids
5. Which one of the following substances will have both dispersion forces and dipole-dipole
forces?
6. Which one of the following substances should exhibit hydrogen bonding in the liquid
state?
Chapter 11 – Intermolecular Forces and Liquids and Solids
7.
Which two properties are more typical of molecular compounds than of ionic compounds?
1. They are gases or liquids at room temperature.
2. They have high melting points.
3. Solids do not conduct electricity, but liquids do.
4. Atoms share electrons.
8. Arrange the following substances in order of increasing boiling point: CH3OH, He, CH3Cl,
and N2
Chapter 11 – Intermolecular Forces and Liquids and Solids
9. Arrange the following substances in order of increasing boiling point: CH3CH2OH,
HOCH2CH2OH, CH3CH2Cl, and ClCH2CH2OH
10. Which of the following liquids would have the highest viscosity at 25C?
Chapter 11 – Intermolecular Forces and Liquids and Solids
11.
Which of the following liquids would have the lowest viscosity at 25C?
Chapter 11 – Intermolecular Forces and Liquids and Solids
12. Which of the following characteristics indicates the presence of weak intermolecular
forces in a liquid?
13. Which of the following properties indicates the presence of strong intermolecular forces
in a liquid?
Chapter 11 – Intermolecular Forces and Liquids and Solids
14. For which of the following species are the dispersion forces strongest?
15. The intermolecular forces present in CH3NH2 include which of the following?
I. dipole-dipole
II. ion-dipole
III. dispersion
IV. hydrogen bonding
Chapter 11 – Intermolecular Forces and Liquids and Solids
16. The intermolecular forces present in HSCH2CH2SH include which of the following?
I. dipole-dipole
II. ion-dipole
III. dispersion
IV. hydrogen bonding
17. The intermolecular forces present in CO include which of the following?
I. dipole-dipole
II. ion-dipole
III. dispersion
IV. hydrogen bonding
Chapter 11 – Intermolecular Forces and Liquids and Solids
18. The intermolecular forces present in C6H6 include which of the following?
I. dipole-dipole
II. ion-dipole
III. dispersion
IV. hydrogen bonding
19. Each of the following substances is a liquid at –50C. Place these liquids in order of
increasing vapor pressure: dimethyl ether (CH3OCH3), propane (C3H8), and ethanol
(CH3CH2OH).
Chapter 11 – Intermolecular Forces and Liquids and Solids
20. Which of the following would be expected to have the highest vapor pressure at room
temperature?
21. Which of the following would be expected to have the lowest vapor pressure at room
temperature?
Chapter 11 – Intermolecular Forces and Liquids and Solids
22. Given the following liquids and their boiling points, which has the highest vapor pressure
at its normal boiling point?
23. The boiling points of propanol (CH3CH2CH2OH) and pentanol (CH3CH2CH2CH2CH2OH)
are 97C and 137C, respectively. The boiling point of butanol (CH3CH2CH2CH2OH) is
predicted to be:
Chapter 11 – Intermolecular Forces and Liquids and Solids
24. The boiling points of chloromethane (CH3Cl) and dichlormethane (CH2Cl2) are – 24 C
and 40.C respectively. The boiling point of trichloromethane (CHCl3) is predicted to be:
25. Arrange the following in order of increasing boiling point: RbCl, CH3Cl, CH3OH, CH4.
Chapter 11 – Intermolecular Forces and Liquids and Solids
26. Arrange the following in order of increasing melting point: NaCl, H2O, CH4, C6H4(OH)2.
27. Which one of the following substances should exhibit hydrogen bonding in the liquid
state?
Chapter 11 – Intermolecular Forces and Liquids and Solids
28. Which one of the following substances should exhibit hydrogen bonding in the liquid
state?
29. Which of following can form hydrogen bonds with water molecules?
(1) Na+ (2) CH3COOH (3) C2H6 (4) CH3NH2
Chapter 11 – Intermolecular Forces and Liquids and Solids
30. Which of the following properties is not influenced by hydrogen bonding?
31. Each of the following substances is a gas at 25C and 1 atmosphere pressure. Which one
will liquefy most easily when compressed at a constant temperature?
Chapter 11 – Intermolecular Forces and Liquids and Solids
32. Which of the following is not true with regard to water?
33. Which property of water allows a razor blade to float on it without sinking?
34. An example of a covalent network solid is
Chapter 11 – Intermolecular Forces and Liquids and Solids
35. Which one of the following is an example of a covalent network solid?
36. The structural form of the element Ge closely resembles the structure of
37. Which one of the following substances crystallizes as a molecular solid?
Chapter 11 – Intermolecular Forces and Liquids and Solids
38. Butter melts over a range of temperatures, rather than with a sharp melting point. Butter is
classified as a/an
39. HOCH2CH2OH(s) is classified as a/an
40. W(s) is classified as a/an
Chapter 11 – Intermolecular Forces and Liquids and Solids
41. Glass is classified as a/an
42. Which one of the following substances crystallizes as a covalent crystal?
43. Which one of the following crystallizes in a metallic lattice?