Lecture Demonstrations

The Lecture Demonstration Laboratory (Bagley Hall 171) is available to assist professors and instructors in the Department of Chemistry through interactive displays and demonstrations. Select the appropriate chapter below to view available demonstrations.

To schedule a demonstration, or if you have any questions or comments, please send e-mail to:

Abi Bravo
Lecture Demonstration Technician
Bagley Hall 171
(206) 543-1606
abi33@uw.edu

The following are designed to be a resource for University of Washington faculty and staff. Demonstrations are to be performed by approved UW faculty and staff only. Do not attempt any of these demonstrations at home.

General Chemistry

1. Chapter 1: Chemists and Chemistry
2. Chapter 2: Atoms, Molecules, and Ions
3. Chapter 3: Stoichiometry
4. Chapter 4: Types of Chemical Reactions and Solution Stoichiometry
5. Chapter 5: Gases
6. Chapter 6: Chemical Equilibrium
7. Chapter 7: Acids and Bases
8. Chapter 8: Applications of Aqueous Equilibria
9. Chapter 9: Energy, Enthalpy, and Thermochemistry
10. Chapter 10: Spontaneity, Entropy, and Free Energy
11. Chapter 11: Electrochemistry
12. Chapter 12: Quantum Mechanics and Atomic Theory
13. Chapter 13: Bonding: General Concepts
14. Chapter 14: Covalent Bonding: Orbitals
15. Chapter 15: Chemical Kinetics
16. Chapter 16: Liquids and Solids
17. Chapter 17: Properties of Solutions
18. Chapter 18: The Representative Elements
19. Chapter 19: Transition Metals and Coordination Chemistry
20. Chapter 20: Organic and Biochemical Molecules

Chapter 1: Chemists and Chemistry

Displays

• Halogen Bulbs
• Periodic Table of Samples
• The Metric System
• Density Bricks

Demonstrations

• Density Column
• Density Column of Coke and Diet Coke
• Liquid Nitrogen
• Galileo Thermometer
• Phases of Bromine
• Scientific Method - Hydrogen Balloons
• Sublimation of Dry Ice
• The Shell Game - Magic Cups

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Chapter 2: Atoms, Molecules and Ions

Displays

• Ball and Stick Models and VESPR Geometries
• Crystals
• Crystal Latices
• Halogen Bulbs
• Space Filling Model

Demonstrations

• Alkali Metals in Water
• Phases of Bromine

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Chapter 3: Stoichiometry

Displays

• Mole Board
• 22.4L Box

Demonstrations

• Bicarbonate Fizz
• Combustion of Magnesium
• Hydrogen rocket
• Match head
• Methane Bubbles
• Formation of Ammonium Chloride
• Precipitation of Lead Iodide

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Chapter 4: Types of Chemical Reactions and Solution Stoichiometry

Displays

• The Metric System

Demonstrations

• Conductivity

  • Barium Sulfate Conductivity Titration
  • Conductivity Change of Acetic Acid with Dilution
  • Conductivity of Ionic Solutions
  • Electric Pickle

• Combination Reactions

  • Combustion of Magnesium
  • Combustion of Steel Wool
  • Equilibrium of Nitrogen Dioxide and Dinitrogen Tetraoxide
  • Pop Bottle Experiment
  • Precipitation of Ammonium Chloride

• Decomposition Reactions

  • Decomposition of Hydrogen Peroxide with Manganese Dioxide
  • Electrolysis of Water

• Displacement Reactions

  • Precipitation

    • Barium Sulfate
    • Carbonates
    • Lead Iodide
    • Lead Sulfide
    • Silver Chloride
  • Alkali Metals in Water
  • Bicarbonate Fizz
  • Metals with acid
  • Replacement Reaction of Copper onto Zinc
  • Replacement Reaction of Silver onto Copper
  • Thermite
  • Titration of Mono and Diprotic acids

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Chapter 5: Gases

Displays

• 22.4L Box

Demonstrations

• Boyle's Law
• Charles's Law
• Collapsible Can
• Diffusion of Bromine
• Diffusion of Hydrogen

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Chapter 6: Chemical Equilibrium

Demonstrations

• Chromate Dichromate Equilibrium
• Cobalt Equilibrium
• Equilibrium of N₂O₄ and NO₂

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Chapter 7: Acids and Bases

Demonstrations

• Buffered Solutions
• Dry Ice Witches Brew
• pH of Salts in Water
• pH of Various Oxides
• Titration of Mono and Diprotic Acids

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Chapter 8: Applications of Aqueous Equilibria

Demonstrations

• Ammines
• Amphoteric Nature of Aluminum Hydroxide
• Buffered Solutions
• Silver Precipitates
• Titration of Mono and Diprotic Acids

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Chapter 9: Energy, Enthalpy, and Thermochemistry

Demonstrations

• Combustion of Magnesium
• Combustion of Steel Wool
• Equilibrium of Nitrogen Dioxide and Dinitrogen Tetraoxide
• Hydrogen Rocket
• Magnesium Fires
• Match Head Reaction
• Methane Bubbles
• Non-Burning Towel
• Pop Bottle Experiment
• Reaction of Glycerol with Potassium Permanganate
• Relative Velocities of Ammonia and Hydrochloric Acid
• Scientific Method - Hydrogen Balloons
• Spontaneous Endothermic Reaction
• Stirling Engine
• Thermite

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Chapter 10: Spontaneity, Entropy, and Free Energy

Demonstrations

• Entropy of a Rubber Band
• Match Head Reaction
• Pop Bottle Experiment
• Spontaneous Endothermic Reaction
• Thermite

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Chapter 11: Electrochemistry

Displays

• Battery Cutaway

Demonstrations

• Baby Battery
• Cathodic Protection
• Concentration Cell
• Daniell Cell
• Electrolysis of Water
• Electroplating Copper onto Stainless Steel
• Replacement Reaction of Silver onto Copper
• Replacement Reaction: Tin and Zinc

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Chapter 12: Quantum Mechanics and Atomic Theory

Displays

• Orbital Models
• Periodic Table of Samples

Demonstrations

• Alkali Metals in Water
• Electric Pickle
• Flame Tests
• Gas Emission Spectra
• Photoelectric Effect
• Waves

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Chapter 13: Bonding: General Concepts

Displays

• Crystals
• Crystal Latices
• VESPR Structures

Demonstrations

• Heat of Solutions
• Conductivity of Ionic solutions
• Methane Bubbles
• Hydrogen Rocket

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Chapter 14: Covalent Bonding: Orbitals

Displays

• Orbital Models
• VESPR Structures

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Chapter 15: Chemical Kinetics

Demonstrations

• Catalytic Decomposition of Peroxides with Manganese - Genie in a Bottle
• Combustion of Steel Wool
• Dust Explosion
• Equilibrium of NO₂ and N₂O₄
• Iodine Clock Reaction
• Kinetics of Crystal Violet
• Kinetics of Light Sticks
• Ozone
• Photochemical Reduction of Thionin

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Chapter 16: Liquids and Solids

Displays

• Solids and Geometries
• Barometers

Demonstrations

• Interference of Light Waves
• Liquid Nitrogen
• Phases of Bromine
• Sublimation of Dry Ice
• Vapor Pressure of Water at Various Temperatures

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Chapter 17: Properties of Solutions

Demonstrations

• Ammonia Fountain
• Conductivity of Ionic solutions
• Density Column
• Dry Ice Witch's Brew
• Effect on Temperature on Solubility
• Freezing Point Depression
• Non-Additive Volume
• Osmosis
• Polystyrene
• Separation of Polar and Non-Polar Substances
• Supersaturation of Sodium Acetate
• Tyndal Effect with Colloids

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Chapter 18: The Representative Elements

Displays

• Allotropes of Carbon
• Minerals
• Halogen Bulbs

Demonstrations

• Alkali Metals in Water
• Combustion of Magnesium
• Equilibrium of NO₂ and N₂O₄
• Match Head Reaction
• Replacement Reactions of Halogens

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Chapter 19: Transition Metals and Coordination Chemistry

Displays

• Ball and Stick Models
• Cobalt Equilibrium
• Transition Metals
• VESPR Balloons

Demonstrations

• Ammines
• Cobalt Equilibrium
• Copper Complexes
• Ethylenediamine Complexes of Nickel
• Nickel Complexes
• Oxidation States of Manganese
• Oxidation States of Vanadium

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Chapter 20: Organic and Biochemical Molecules

Displays

• Ball and Stick Models
• Macromolecules

Demonstrations

• Addition Reaction of Bromine and Cyclohexene
• Breathalyzer Test
• Ester Sniff Kit
• Methane Bubbles
• Nylon rope Trick
• Optical Activity
• Polystyrene
• Polyurethane
• Saponification
• Shell Game - Magic Cups
• Slime
• Tollens' Test for Aldehydes

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Demonstrations no longer available -- please contact Lecture Demo tech with questions