By Jill Larson
Students solve a molarity problem in a drag and drop exercise.
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Gas Volume vs. Pressure (Boyle's Law)
By Dr. Miriam Douglass, Dr. Martin McClinton
Boyle's Law states that gas volume varies inversely with the pressure at constant temperature and is described by the equation PV = constant. An example of a sample of gas at two conditions of P and V is used to illustrate the law.
Calculating Gas Density from Standard Molar Volume
By Dr. Miriam Douglass
Learners calculate gas density from the standard molar volume and observe how the density increases with the increasing molecular weight of the gas.
The Solid State
By Debbie McClinton, Dr. Miriam Douglass, Dr. Martin McClinton
In this well-illustrated object, learners examine the structures and properties of the four types of solids: molecular, metallic, ionic, and covalent network. Five interactive questions are provided.
Phase Diagrams
Learners examine phase diagrams that show the phases of solid, liquid, and gas as well as the triple point and critical point.
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