Class Activities

Intermolecular Forces and Molecular Models Activity

Students work in groups to construct models and connect the models by rubber bands representing an intermolecular force. Students a. identify the partial positive charge atoms and the partial negative charge atoms in each model that are involved in the IMF, b. calculate the difference in electronegativity between the opposite charged atoms, c. select the appropriate rubber band width to correlate with the strength of the IMF between models, d. correlate the strength of the IMF to a physical property of the liquid state of the compound - boiling point and Heat of Vaporization.
Two Ethanol Models Hydrogen Bonding Intermolecular Force Image1210

Periodic Trends Computer Simulation

Periodic Trends Computer Simulation A computer simulation providing data for student to explore the periodic trends with respect to atomic radius, first ionization energy, electron affinity, ionic size, etc.
Periodic Trends Computer Simulation Image914

These Are Not the Bonds You're Looking For: Introduction to Resonance Structures

A parody of one scene in Star Wars Episode IV A New Hope. Obi-Wan Kanobi, Luke Skywalker, C3PO and R2D2 enter Mos Eisley on Tatoonie. They are stopped by Stormtroopers and questioned about the droids they are transporting. In the skit, Obi-Wan Kanobi and Luke Skywalker are tranporting ozone and calcum carbonate.
These Are Not the Bonds You're Looking For Resonance structures Image 870

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© Copyright 2012 Email: Randy Sullivan, University of Oregon Chemistry Department and UO Libraries Interactive Media Group