Chemiluminescent Ammonia Fountain
Crystallization from Supersaturated Solutions of Sodium Acetate
Density and Miscibility of Liquids
Electrical Conductivity of Liquids and Solutions
Osmotic Pressure of a Sugar Solution
Vapor Pressure of Solutions: Raoult’s Law
A Visual Demonstrations of Raoult’s Law
Water Softening – Hard and Soft Water With Soap
Clean Air With the Cottrell Precipitator
Color of Sunset: The Tyndall Effect
Getting Colder: Freezing Point Depression
Getting Hotter: Boiling Point Elevation by Nonvolatile Solutes
Salting Out: Making Liquids Immiscible
Volume Increase Upon Neutralization
Lava Lamp
Description: Two mutually immiscible liquids in a cylinder are heated with a light bulb. The density of the liquids changes as they are heated and cooled. It takes several hours for the lamp to warm up sufficiently. Allow 20 minutes for warm-up time.
Source: UW Card Catalog
Year: 1990 Volume: N/A Page: N/A
Keywords: Miscibility of liquids, Density of liquids, Immiscible liquids, Mineral oil
Rating: 
Hazard: Some
- Sealed system
- Burn hazard
- Electric shock hazard
Effectiveness: Good
- Results are clearly observable
- High reliability
- Time to results is high
- Some connection from demo to course material
Difficulty: Low
- Simple manipulations for most to perform
- Simple procedures
Safety Precautions:
- Eye protection required
- High-temperature gloves recommended
- Use UL approved three-prong plug and outlet
Class: Intermolecular Forces
Division: General
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