Wednesday, April 13, 2011

Tues./Wed., April 12-13, 2011

In class:

  • Reviewed "Intermolecular Forces" homework worksheet
  • Discussed Properties of Liquids (Section 14.2)
    • Viscosity - Resistance to motion that exists between the molecules of a liquid when they move past each other.
    • Surface Tension - Imbalance of attractive forces at the surface of a liquid that causes the surface to behave as if it had a thin film across it; resistance of a liquid to an increase in its surface area.
Homework:
  • Read Section 14.3 & complete the worksheets below.


Bonus:
  • Watch the video below and explain the how the trick works. 
    • To receive credit you need to discuss the following topics.
      • Properties of water
      • Surface Tension
      • Intermolecular Forces
      • Properties of surfactants
      • Miscelles

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