Equilibrium Between Nitrogen Dioxide and Dinitrogen Tetroxide
Effect of Pressure on Melting Point of Ice
The Liquid Phase of Carbon Dioxide
Vapor Pressure of Pure Liquids
Getting Colder: Freezing-Point Depression
Getting Hotter: Boiling-Point Elevation by Non-Volatile Solutes
Osmotic Pressure of a Sugar Solution
Vapor Pressure of Solutions- Raoult’s Law
Boiling Two Liquids at Room Temperature
Salting Out: Making Liquids Immiscible
Electrolysis of Potassium Iodide
Hydrogen Ion Concentration Cell
Acid-Base Properties of Amino Acids
Electrical Conductivity of Liquids and Solutions
Aluminum & Oxygen
Battery
Description: This device uses oxygen from air, mediated by manganese dioxide. Sodium chloride solution is used as the electrolyte. Aluminum metal serves as the other electrode. It will drive a motor or a small light bulb.
Source: UW Card Catalog- Commercial Demonstration, The Alupower Kit
Year: 1995 Vol: N/A Page: N/A
Keywords: Battery, Manganese Dioxide, Sodium Chloride, Aluminum, Electrochemistry, Redox
Ratings: 
Hazard: Some
- Acute toxicity hazard – oral, inhalation
- Specific organ toxicity – brain
Effectiveness: Average
- Good connection from demo to course material
- Clear contrast between systems behavior
- Time to results is low
- Low reliability
- Mild effects are seen by audience
Difficulty: Medium
- Use of electrical circuit
- Use of mildly reactive substances
- Simple procedures
- Simple manipulations for most to perform
Safety Precautions:
- Eye protection required
- Gloves recommended
- Absorbent materials on hand
Class: Electrochemistry, Redox, Battery
Division: General, Physical Chemistry
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