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This Molar Mass Determination from Freezing Point Depression lesson plan also includes:
Let the data tell the story. A lab activity has pupils collect temperature data on solutes as they melt and freeze. They use their data to create a cooling curve and then calculate the molar mass using the freezing point depression.
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Instructional Ideas
- Have pupils develop their own procedures and compare and contrast strategies and accuracy
- Don't reveal the type of chemical in the experiment and have groups determine its identity based on their calculations
Classroom Considerations
- Review safety precautions for working with chemicals
Pros
- Includes a key with typical results
- Provides a teaching guide to help plan for instruction
Cons
- None