Chapter 11 - Chapter 11 1. The boiling point of ammonia,...

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Chapter 11 1. The boiling point of ammonia, NH 3 , is significantly higher than that of analogous compounds from the same group, e.g., PH 3 , AsH 3 , and SbH 3 . The principal reason for the abnormally high boiling point is A. London dispersion forces B. ion dipole forces C. dipole dipole interactions D. hydrogen bonding E. ion induced dipole forces 2. Which of the following statements about intermolecular forces is true? A. The large London dispersion forces between helium atoms make helium difficult to liquefy. B. Intermolecular forces in a liquid are weaker than intramolecular forces. C. Ion ion forces in an ionic solution are independent of the distances between ions. D. Dipole dipole forces dominate in interactions between carbon dioxide molecules. E. Van der Waals forces account for the cohesive energy of an ionic liquid. 3. Elementary phosphorus is a solid consisting of P 4 molecules and melts at 44 ° C. The principal forces between the molecules in the solid must be A. London dispersion.
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This note was uploaded on 07/16/2011 for the course CHEM 110 taught by Professor Hofmann,brucerob during the Spring '08 term at Pennsylvania State University, University Park.

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Chapter 11 - Chapter 11 1. The boiling point of ammonia,...

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