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Dr. Miriam Douglass
Dr. Martin McClinton
In this animated and interactive object, learners examine the inverse proportionality of wavelength and frequency and their relationship to the speed of light.
The Mole and Avogadro's Number
By Debbie McClinton, Dr. Miriam Douglass, Dr. Martin McClinton
Learners examine how chemists use moles to "count" atoms by weight. Examples are given.
The Hydrogen Bond
By Jill Larson
In this interactive object, students examine a type of chemical bond known as the "hydrogen bond."
Calculating Formula Weight and Molecular Weight
In this interactive object, learners calculate formula and molecular weights by working through five examples and two problems.
Heat of Fusion and Heat of Vaporization
Learners examine graphs and read that the heat of fusion is the heat energy absorbed by one mole of solid as it is converted to liquid, while the heat of vaporization is the heat energy absorbed by one mole of liquid as it is converted to gas.
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