This week’s lab is based on colligative properties. Colligative properties are defined. The freezing point depression of an aqueous solution is used to calculate the molar mass of an unknown solute.
Objectives: After completing this week’s assignments you will be able to:
- Define and identify colligative properties.
- Observe the effect of a solute on the freezing point of a solvent.
- Determine the molar mass of a nonvolatile, nonionizing solute.
| Assignment | Approximate Time to Complete | Due Date |
| Read over Lab Handout
*This MUST be printed and brought to class. |
15 minutes | Before Lab |
| View Prelab Video (Optional) | 30 minutes | Before Lab |
| Complete Prelab Quiz | 20 minutes | Before Lab |
| Complete Data and Obtain Signature | Completed In Class | In Class |
| Complete Postlab Quiz | 15 minutes | Before Next Lab Meeting |
*Prelab assignments must be completed prior to coming to lab for a student to be admitted to class.