Lab-Aids:‚ Modeling Chemical Equilibrium Kit
Students use an innovative LAB-AIDS‚® model simulate the simultaneous occurrence of forward and reverse reactions that helps develop the concept of chemical equilibrium and the equilibrium constant (Keg). This mechanical system provides a simple look at dynamic equilibrium and allows students to collect data to use to calculate Keg for several "reactions." They then use their understanding of Keg to calculate the predicted results for other "reactions."
Scientific Concepts:
- Reaction rates depend on the properties of the reacting species
- Models are useful tools for exploring and understanding natural phenomena
- Many chemical reactions reach a state of equilibrium where the rate of production of products is equal to the rate of production of reactants
- The equilibrium constant, Keq, for a chemical reaction describes the relative proportion of each chemical once equilibrium is reached
Content List:
- 1 Teacher's Guide and MSDS
- 28 Student Guides and Worksheets
- 6 Graduated Reactant Bottles LAB-AIDS‚®
- 6 Unmarked Bottles
- 6 Round-collared Equilibrium Plugs‚® , LAB-AIDS‚®
- 6 Square-collared Equilibrium Plugs‚®, LAB-AIDS‚®
- 6 Hexagonal-collared Equilibrium Plugs‚®, LAB-AIDS‚®
- 2 Blue food coloring, 15-mL bottles
Classroom Planning:
- To complete this kit requires one ~50-minute class period.
- Number of students: 24
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