• Show how a model of varying distribution of valence electrons in covalently bonded molecules can account for attractive forces between molecules.
    • Represent distributions of electrons in various simple molecules.
    • Use this model to account for the relationship between the strength of London forces and size in non-polar molecules.
    • Use this model to account for the strength of dipole-dipole interactions between polar molecules.
  • Account for differences in physical properties (such as m.p. and b.p.) in terms of intermolecular forces of attraction.
  • Distinguish between attractions (between molecules) and bonds (within molecules).
  • Describe the conditions under which hydrogen bonds can form between (and within) molecules.
  • Use the concept of hydrogen bonding to explain some of the properties of water.
  • Describe the role attractive forces between molecules play in the miscibility of various liquids and the solubility of solids in water.
  • Describe the dispersion of oil by soaps, detergents and the lipids in egg yolks in terms of intermolecular attractions.
  • Differentiate and explain the properties of saturated and unsaturated fats and their impact in nutrition.
  • Explain how important bio-molecules can be built by the polymerization of simpler molecules containing various functional groups.
  • Explain the role intermolecular attractions play in the structure and function of such bio-molecules as proteins, polysaccharides, nucleic acids, and phospholipid bilayers.




Crash Course: Polar vs. NonPolar
VSEPR Theory Intro
VSEPR Theory Practice Problems
VSEPR Theory Common Mistakes
Intermolecular Forces


PhET: Molecule Polarity


Intermolecular Forces