InterHWK - Chem 112 Intermolecular Forces Chang From the...

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Chem 112 Intermolecular Forces Chang From the book (10, 12, 14, 16, 18, 20,84,92,94,102,104, 108, 112, 114, 118 and 134) 1. Helium atoms do not combine to form He 2 molecules, What is the strongest attractive force between He atoms? 2. What is the molecular property related to the ease with which the electron density in a neutral atom or molecule can be distorted? 3. Which one of the following substances will have both dispersion forces and dipole-dipole forces? A. HCl B. BCl 3 C. Br 2 D. H 2 E. CO 2 4. Which one of the following substances should exhibit hydrogen bonding in the liquid state? A. PH 3 B. H 2 C. H 2 S D. CH 4 E. NH 3 5. Which two properties are more typical of molecular compounds than of ionic compounds? A. They are gases or liquids at room temperature. B. They have high melting points. C. Solids do not conduct electricity, but liquids do. D. Atoms share electrons. 6. Which of the following substances should have the highest boiling point? A. CH 4 B. Cl 2 C. Kr D. CH 3 Cl E. N 2 7. Which of the following would be expected to have the highest vapor pressure at room temperature? A. ethanol, bp = 78 ° C B. methanol, bp = 65 ° C C. water, bp = 100 ° C D. acetone, bp = 56 ° C 8. Which of the following would be expected to have the lowest vapor pressure at room temperature? A. ethanol, bp = 78 ° C B. methanol, bp = 65 ° C C. water, bp = 100 ° C D. acetone, bp = 56 ° C 9. Given the following liquids and their boiling points, which has the highest vapor pressure at its normal boiling point? A. ethanol, bp = 78 ° C B. methanol, bp = 65 ° C C. water, bp = 100 ° C D. benzene, bp = 80 ° C E. The vapor pressure of each of the liquids at its normal boiling point would be the same.
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10. Choose the response that lists the member of each of the following pairs that has the higher
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This note was uploaded on 11/19/2011 for the course BIOLOGY 101 taught by Professor Mr.wallace during the Fall '11 term at Montgomery College.

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InterHWK - Chem 112 Intermolecular Forces Chang From the...

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