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Unit 4 – Energy and Chemical Reactions
Friday, January 13, 2026
In this class we will start the semester by reviewing the basics of chemistry and the structure of the class overall.
Atomic Structure and Mass Review
Assignment Due Wednesday, February 18, 2026
Late Assignment Due Date Friday, January 20, 2026
Atomic Number, Mass Number, and Atomic Mass
Tuesday, January 17, 2026
In this class we will continue our look at structure of atoms by focusing on the mass of an atom in atomic mass units (amu) and grams (g)
Atomic mass and the atomic structure
Calculating atomic mass of an atom
Assignment Due Thursday, February 19, 2026
Late Assignment Due Date, Tuesday, January 24, 2026
Comparing Atomic Mass and Average Atomic Mass
Wednesday, January 18, 2026
In this class we will continue our look at mass of atoms, focusing on using mass to define a new unit the mol, and a special constant, Avagadro’s Number, the number of atoms in a mol of the atom.
The Mol and Avagadro’s Number
Comparing the Mol and Atomic Mass Unit
Assignment Due Friday, February 20, 2026
Late Assignment Due Date, Wednesday, January 25, 2026
Comparing atomic mass and molar mass
Thursday, January 19, 2026
In this class we will continue our look at molar mass, focusing on calculating the molar mass of compounds and molecules containing simple ratios with only representative elements (groups 1A – 8A + transition metals)
Molar Mass of Compounds and Molecules
Molar Mass Examples, Binary Compounds
Assignment Due Monday, February 23, 2026
Late Assignment Due Date, Thursday, January 26, 2026
Calculating Molar Mass for Compounds and Molecules
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