Instructional Video

Percent Yield

How do chemists know if they've done a good job performing a reaction? They use the percent yield equation! Introduce the calculation that often determines success (or otherwise) in the lab with a short video. The narrator explains actual versus theoretical yields, demonstrates the calculation, and examines the results.

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CCSS: Adaptable
Additional Tags
Instructional Ideas
  • Pause the video strategically to allow the class to try the calculations on their own
  • Discuss reasons why actual yields are often less than theoretical yields
Classroom Considerations
  • Students should be familiar with stoichiometric calculations before calculating percent yield
  • Focuses on interpreting the language of the problem, an essential skill in stoichiometry
  • Narrator explains the concepts using correct terms and good examples
  • None
Common Core