Toxins: Molar Mass

Today’s work began with the ChemCatalyst from the Lesson 77 PowerPoint.  Students considered the question for a few minutes and were once again reminded how abstract the idea of the mole really is.  To help bring the concept of the mole to life, students worked through the Lesson 77 Worksheet.  The worksheet consisted of two parts, with Part 1 asking students to work through some of the math behind calculating molar mass.  Then in Part 2, students participated in a lab activity where they were able to actually measure out and visualize what one mole of various materials look like.  Students worked with water, table salt, aluminum, nickel, and iron.  For homework, students were assigned textbook questions 5-7.

Answers for Part 1 are shown below:

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