Description
Grades 9–12.
- Determine the freezing-point depression of ionic and molecular substances
- Graph freezing-point curves
- Determine the van’t Hoff factors of an unknown substance
Students first determine how freezing points of solvents can be depressed by the addition of nonvolatile solutes. They then experimentally determine the molar mass of an unknown compound and design an experiment to determine the boiling point constant for water. Kit includes enough materials for at least 30 students working in groups.
Includes
- 2 Grease Pencils, Black
- 40 Test Tubes
- 250 Weighing Boats, Medium
- 1 Sucrose, 500 g
- 2 Sodium Chloride, 500 g
- 2 Calcium Chloride, 20 g
- 1 Teacher’s Manual with Reproducible Student Guide