Week 2 - intermolecular forces and phase diagrams

Week 2 - intermolecular forces and phase diagrams - Chem...

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Chem 20B Week 2 1. Circle all of the molecules below you expect to be polar (hint: think symmetry - use VSEPR and electronegativity differences): a. CH 3 Cl b. CH 4 c. CCl 4 d. SO 2 e. CO 2 f. H 2 O g. NH 3 h. CH 3 –CH 3 i. CH 2 =CH 2 j. CH 3 OH k. CH 3 NH 2 2. Define each type of intermolecular force below. Give an example of each and describe what characteristic that example has that results in each type of intermolecular force. a. Ion-dipole: _____________________________________________________ b. Dipole-dipole: __________________________________________________ c. London dispersion forces: ________________________________________ d. Hydrogen bonding: _____________________________________________ 3. List the intermolecular forces that exist between molecules (or basic units) in each of the following. Circle the strongest force that will determine physical properties (e.g., boiling points) for each substance. CH
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This note was uploaded on 10/26/2011 for the course CHEM 20B taught by Professor Felker during the Spring '08 term at UCLA.

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Week 2 - intermolecular forces and phase diagrams - Chem...

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