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Internet Exercises
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  1. NYU's Molecular Library offers images of 3-D molecular structures of water, carbon, hydrocarbons, and biochemical molecules. Study their page of hydrocarbons at http://www.nyu.edu:80/pages/mathmol/library/hydrocarbons/.
    1. What type of intermolecular forces exist between ethane molecules?
    2. What type of intermolecular forces exist between octane molecules?
    3. Between which type of molecule is the force greater?
    4. Which molecule would have the greater boiling point?
    5. What types of intermolecular forces exist between ethanol molecules?

( http://www.nyu.edu:80/pages/mathmol/library/hydrocarbons/ )
  1. Now go to their images of water at http://www.nyu.edu:80/pages/mathmol/library/water/index.html.
    1. What types of intermolecular forces exist in water?
    2. In ice, how many hydrogen atoms are bonded to oxygen?
    3. What types of bonds exist around the oxygen in ice?
    4. Examining the structure of ice, explain why it floats on water.

( http://www.nyu.edu:80/pages/mathmol/library/water/index.html )
  1. Differentiate between intermolecular forces and intramolecular forces at Florida State's tutorial at http://wine1.sb.fsu.edu/. Go to Teaching and Coursework, then Chemistry 1045, then Lecture Notes, and finally scroll down to Intermolecular Forces and open.
    1. What do intermolecular forces influence compared to those influenced by intramolecular forces?
    2. What two things does the state of matter depend on? What state has the greatest intermolecular forces?
    3. Why does acetonitrile have a higher boiling point than methyl chloride?
    4. Describe London forces.

( http://wine1.sb.fsu.edu/ )







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