Lesson Plan

The Composition of Potassium Chlorate

Curated and Reviewed by Lesson Planet

The third lesson in a series of 11 begins by using thermal decomposition of potassium chlorate to determine the mass percent of oxygen. Then a second activity allows scholars to demonstrate that the resulting residue is from a decomposition reaction.

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CCSS: Adaptable
Additional Tags
Instructional Ideas
  • Have a sample setup completed at the front of the room for pupils to reference
Classroom Considerations
  • Follow all safety guidelines with open flames, hot equipment, and chemicals
  • Some chemicals used may stain the skin, burn the skin, burn the eyes, or splash and stain surfaces
Pros
  • Includes all equations used in the experiment
  • Provides a pre-lab worksheet that verifies learners have read the instructions completely before beginning
Cons
  • None
Common Core