| Videos: 19 results |
Atmospheric Pollution
The formation and effects of acid rain and other pollutants are simulated.
Atmospheric Chemistry |
Gases
|
Atmosphere
Topics associated with the atmosphere include atmospheric pressure, pollution and the role of ozone.
Gases |
Atmospheric Chemistry
|
Atmospheric Pressure
Atmospheric pressure is used to collapse large and small metal containers.
Phases / Phase Transitions / Diagrams |
Gases |
Atmospheric Chemistry
|
Gas Stoichiometry
Gas is generated from one mole of liquid of solid and the volume is measured using a gas collection system.
Stoichiometry |
Gases
|
Ozone: Absorbance of UV Light
Ozone is produced. Exposure to a shortwave ultraviolet source causes the ozone to cast a shadow against a fluorescent yellow background.
Atmospheric Chemistry |
Photochemistry
|
Stoichiometry
The Stoichiometry group contains three groups: Exploding Soap Bubbles: Hydrogen + Oxygen; Acid-Base Titrations and Animation; and Redox Titration and Animation.
Stoichiometry
|
Exploding Soap Bubbles: Hydrogen + Oxygen
Explosions of bubbles filled with only hydrogen and with varying ratios of hydrogen and oxygen are demonstrated.
Reactions |
Oxidation / Reduction |
Stoichiometry
|
Hydrogen + Chlorine Cannon
When a corked test tube containing a mixture of hydrogen and chlorine is struck by light from a burning magnesium ribbon, the resulting explosion propels the cork out of the test tube.
Gases |
Photochemistry |
Reactions
|
Chemical Properties of Sulfur Dioxide
Reactions involving sulfur dioxide.
Gases |
Reactions |
Oxidation / Reduction
|
Big Barometer
This is a demonstration of an eleven foot high barometer made with a concentrated solution of potassium tetraiodomercurate(II). A second movie compares the densities of mercury, potassium tetraiodomercurate(II) solution, and water.
Gases |
Physical Properties
|
Steam and Superheated Steam
When a gas burner heats the steam coil strongly, the steam becomes superheated and is at a high enough temperature to ignite a match and react quickly with steel wool
Gases |
Phases / Phase Transitions / Diagrams
|
Effusion of Gases
Effusion of various gases are compared.
Gases |
Physical Properties |
Transport Properties
|
Combustion of Hexane
Combustion of hexane with limited oxygen and addition of water to burning hexane are demonstrated.
Alkanes / Cycloalkanes |
Reactions |
Stoichiometry |
Applications of Chemistry
|
Vapor Pressure
Pressure exerted by vapor of several organic substances is demonstrated using barometers. Molecular models of the substances are shown.
Gases |
Phases / Phase Transitions / Diagrams |
Physical Properties
|
Boiling by Cooling
A flask contains water and water vapor at 100C. Each time ice water is poured over the outside of the flask, the water inside the flask boils. Although the temperature of the water in the flask has decreased, in each instance boiling is observed.
Gases |
Liquids |
Phases / Phase Transitions / Diagrams
|
Vapor Pressure: Molecular Size
The measurement of pressure exerted by a vapor is demonstrated using barometers. Vapor pressure varies with the strength of the intermolecular forces in the liquid.
Gases |
Liquids |
Noncovalent Interactions |
Phases / Phase Transitions / Diagrams |
Physical Properties
|
Vapor Pressure of a Mixture: Raoult's Law
The measurement of pressure exerted by a vapor is demonstrated using barometers. Vapor pressure varies with the strength of the intermolecular forces in the liquid.
In this section we will look at vapor pressure of mixtures. We can calculate the vapor pressure of a mixture using Raoult's law.
Gases |
Liquids |
Noncovalent Interactions |
Phases / Phase Transitions / Diagrams |
Physical Properties
|
Acid Base Reactions of Sulfur Dioxide
Acid base reactions involving sulfur dioxide are shown.
Acids / Bases |
Gases |
Reactions |
Oxidation / Reduction |
Precipitation / Solubility |
Descriptive Chemistry |
Applications of Chemistry
|
Enthlapy-Thermodynamics
Reactions and demonstrations the explore thermodynamic concepts.
Precipitation / Solubility |
Solutions / Solvents |
Calorimetry / Thermochemistry |
Applications of Chemistry |
Acids / Bases |
Physical Properties |
Reactions |
Thermodynamics |
Gases |
Phases / Phase Transitions / Diagrams |
Water / Water Chemistry |
Liquids |
Solids |
pH |
Consumer Chemistry |
Kinetics |
Oxidation / Reduction
|
