Chemistry 19

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Atoms and Moles

Compared to other subjects, the periodic table and its display of the elements (atoms) serve as a chemistry student’s visual representation of their subject. Similarly, the mole (abbreviated mol) is quite possibly the most important mathematical distinction of chemistry compared to other subjects. Avogadro’s number is a mol, or 6.022 x 1023.   This topic introduces the mole similar to how “dozen” conveys the number 12. Reasons behind usage of the mole, ways to apply it to chemistry calculations, as well as better grasping the smallness of the atom are practiced and discussed. Combining patterns and other information conveyed by the periodic table along with concepts of Avogadro’s number become the foundation of many, more advanced topics in chemistry.

Lesson 1 (or “Day 1”) Material
Lesson 2 (or “Day 2”) Material
Lesson 3 (or “Day 3”) Material
Lesson 4 (or “Day 4”) Material


0:41 Origin of Mole

7:01 The Mole

2:23 The History of Avogadro’s Number with Bill Bryson



Compare Contrast and Debate

Kickoff Debate Background: xx

  • Position A: Honeycutt Science should x
  • Position B: Honeycutt Science should x

Resources Documents and Links


Notes and Notices

Instructor Emphasis:

  • Science & Engineering Practice: Analyze and interpret data.
  • Cross-Cutting Concept: Scale, Proportion, and Quantity.