Unit 6: Mole & Stoichiometry

Learning Objective for Unit 6 is located here.

Atoms and molecules are so small, but chemists use a method of counting by weighing to measurement amounts. This is very useful as we see the information contained in a balanced chemical equation. This will lead us into stoichiometry: a concept that looks funny and might be scary to learn, but once you've got it you have just accomplished a major part of chemistry. To be discussed: molar ratios, mole:mole stoichiometry, limiting and excess reactants, and percent yield.

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Notes/ Readings

Empirical Formula Notes

Combustion Analysis Notes

Limiting/Excess Reactant Notes

Mole to Mass Stoichiometry Notes

Mole Conversion Flowchart

Consider this ...


Course Reference Booklet

โ€ข Periodic Table of Elements โ€ข Ions & Conversions โ€ข Solubility Rules, Oxidation No, Molecular Geometry โ€ข Equations and Constants

Relevant Textbook Sections

Free textbook from openstax: Chemistry 2e

Practice Quizzes

Click a quiz to be taken directly to the practice assessment. Quizzes are only for chemdunn subscribers and require a Canvas account.

Quiz #33 - Mole Practice

Quiz #34 - More Mole Practice (Practice or Mastery)

Quiz #35 - Percent Composition

Quiz #36 - Empirical Formulas

Quiz #37 - Chemical Quantities Mixed

Quiz #38 - Intro Stoichiometry (Part 1)

Quiz #39 - Intro Stoichiometry (Part 2)

Quiz #40 - Limiting Reactant Practice

Quiz #41 - Limiting Reactant Challenge

Quiz #42 - Limiting and Excess Reactant

Quiz #43 - Percent Yield & Limiting Reactant

Labs/ Activities