Kinetics of the Acid Decomposition of Thiosulfate

This Kinetics of the Acid Decomposition of Thiosulfate lab resource also includes:

Several factors affect the rate of a chemical reaction including temperature, surface area, and concentration. Using an experimental approach, learners explore the effect concentration has on this rate while maintaining consistency with the other factors. After initiating the reaction, individuals monitor the amount of precipitate as an indicator of reaction completion.

3 Views 1 Download NGSS: Adaptable
Instructional Ideas

  • Have pupils balance the chemical reaction as an introduction to the activity
Classroom Considerations

  • Review safety procedures for working with concentrated acids
  • Expects an understanding of the components of an acid

  • Provides background information to introduce the¬†activity
  • Uses materials common in a chemistry classroom

  • None