78 Results
Critical Temperature and Pressure   
(Other (1))
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Boiling Point   
(Other (1))
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Viscosity   
(Other (1))
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
The Equilibrium Constant in Terms of Pressure   
(Other (1))
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Colligative Properties of Solutions   
(Other (1))
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Distillation   
(Other (1))
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Physical Properties   
(Other (1))
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Density   
(Other (1))
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Pressure   
(Other (1))
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Boiling and Freezing Points   
(Other (1))
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Solutions   
(Movie/Animation, Audio/Visual (9))
Reactions and demonstrations exploring the concepts of solutions.
Hardness of Solid Substances - Grinding   
(Movie/Animation, Audio/Visual (9))
A number of metals and nonmetals are ground with a mortar and pestle. The nonmetals shown here are all soft (due to weak intermolecular forces), but the metals vary in hardness.
Viscosity of Liquids   
(Movie/Animation, Audio/Visual (8))
Various experiments determining the viscosity of liquids.
Effusion of Gases   
(Movie/Animation, Audio/Visual (8))
Effusion of various gases are compared.
Electrical Conductivity-Solids   
(Movie/Animation, Audio/Visual (8))
The conductivity of various solids are tested.
Boiling Points of Straight-Chain Alkanes   
(Movie/Animation, Audio/Visual (7))
The boiling points of straight-chain alkanes with 5-10 carbon atoms are determined.
Scattering and Absorption of Light   
(Movie/Animation, Audio/Visual (7))
The effects of passing light through a colloidal suspension of milk in water and through a solution of copper sulfate are shown.
Electrical Conductivity-Solutions   
(Movie/Animation, Audio/Visual (6))
Solutions are measured for conductivity.
Heat Treatment of a Metal Bobby Pin   
(Movie/Animation, Audio/Visual (6))
A bobby pin is subjected to various heat treatments.
Electrical Conductivity-Liquids   
(Movie/Animation, Audio/Visual (6))
The conductivity of liquids are tested.
Boiling Points of Hexane Isomers   
(Movie/Animation, Audio/Visual (6))
The boiling points of the five isomers of hexane are determined.
Measuring Relative Viscosity   
(Movie/Animation, Audio/Visual (6))
The rate of flow of six different liquids through a Mohr pipet is measured.
Hardness of Solid Substances   
(Movie/Animation, Audio/Visual (5))
The hardness of various solids are compared.
Plastic Sulfur   
(Movie/Animation, Audio/Visual (5))
Yellow powdered sulfur is heated until it becomes molten and brown. At first it flows freely, but then it becomes very viscous. Upon further heating, the viscous sulfur flows freely again and ignites. The burning liquid sulfur is poured into a beaker of water. When removed from the water, the sulfur is rubbery and flexible.
Floating Squares   
(Movie/Animation, Audio/Visual (5))
Graphite (from a pencil lead) is applied to one side of an index card and a piece of the card is immersed in a beaker containing hexane and water (two layers). The graphite-coated side always faces the hexane layer. When the two liquids are carbon tetrachloride and water the graphite-coated side always faces the carbon tetrachloride.
Vapor Pressure   
(Movie/Animation, Audio/Visual (5))
Pressure exerted by vapor of several organic substances is demonstrated using barometers. Molecular models of the substances are shown.
Properties of Gases   
(Movie/Animation, Audio/Visual (5))
Some properties of gases are demonstrated, including the powerful force of atmospheric pressure and aspects of phase changes.
Isotopes: Heavy Water Ice Cubes   
(Movie/Animation, Audio/Visual (4))
An H2O ice cube is shown to float in a beaker of liquid water, while an ice cube of D2O (heavy water) is shown to sink in liquid water.
Liquefaction of Carbon Dioxide   
(Movie/Animation, Audio/Visual (4))
Dry ice is placed into an acrylic plastic cylinder. A valve is closed and pressure in the cylinder increases. When the pressure reaches 350 kPa (50 psi) it stops increasing and liquid CO2 appears.
Structure-Property Relations for Alkanes and Alcohols   
(Movie/Animation, Audio/Visual (4))
Boiling points of alkanes, miscibility of alcohols, and the vapor pressure and viscosity of several organic compounds are demonstrated.
pH of Acetic Acid Derivatives   
(Movie/Animation, Audio/Visual (3))
The pH of acetic acid, monochloro-, dichloro-, trichloro-, and trifluoroacetic acids are compared.
Conductivity of Aqueous Acids, Bases, and Salts   
(Movie/Animation, Audio/Visual (3))
The conductivity of carboxylic acid solutions is tested with a conductivity apparatus.
Light as a Wave: Reflection, Diffraction, Polarization, and Absorption   
(Movie/Animation, Audio/Visual (3))
The following demonstrations illustrate diffraction, scattering, and absorption of light.
Thermochromism: Mercury(II) Iodide   
(Movie/Animation, Audio/Visual (2))
When red-orange Mercury(II) Iodide (HgI2) is heated, it undergoes a phase transition at 126oC to a pale yellow form. As the heated sample cools, it gradually returns to the original red-orange color.
Vapor Pressure of a Mixture: Raoult's Law   
(Movie/Animation, Audio/Visual (2))
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.
Vapor Pressure: Molecular Size   
(Movie/Animation, Audio/Visual (2))
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.
Memory Metal   
(Movie/Animation, Audio/Visual (2))
When a piece of metal wire spelling the letters ICE is pulled apart, it deforms. When the wire is placed in hot water, it "remembers" its original shape, once again forming the letters ICE. (The memory metal used in this demonstration was provided by the Institute for Chemical Eduction.) A simulation of the processes at the atomic level is shown.
Big Barometer   
(Movie/Animation, Audio/Visual (2))
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.
Heat Conduction by Diamond   
(Movie/Animation, Audio/Visual (2))
Diamond is shown to conduct heat better than aluminum.
Relation of Structure to Boiling Point of Alkanes   
(Movie/Animation, Audio/Visual (2))
The boiling point of straight-chain alkanes and isomers of hexane are determined and molecular models of the hydrocarbons are shown.
Vapor Pressure: Molecular Size   
(Movie/Animation, Audio/Visual (2))
The vapor pressures of pentane, hexane, and heptane are compared. The vapor pressures of methanol and ethanol are compared. Molecular models of the compounds are shown.
Viscosity of Liquids   
(Movie/Animation, Audio/Visual (2))
The viscosities of water, 2-propanol (rubbing alcohol), ethylene glycol (antifreeze) and vegetable oil are compared. The viscosities of water, hexane, octane, 2,2,4-trimethylpentane and 1-pentanol are measured.
Like Dissolves Like - Multimedia Experiments   
(Movie/Animation, Audio/Visual (18))
There are a total of six experiments you can view. You can view them in any order, as many times as you wish. Each experiment has three steps.
Enthlapy-Thermodynamics   
(Movie/Animation, Audio/Visual (10))
Reactions and demonstrations the explore thermodynamic concepts.
Floating Squares (GCMP)   
(Interactive Simulation, Software (1))
Floating Squares: this is a resource in the collection "General Chemistry Multimedia Problems". In this problem we will coat a piece of notecard with graphite (from pencil lead). We then will float the piece in two beakers containing water and a second solvent. General Chemistry Multimedia Problems ask students questions about experiments they see presented using videos and images. The questions asked apply concepts from different parts of an introductory course, encouraging students to decompartmentalize the material.
Acids_and_Bases : PracticalAcidBase (20 Variations)   
(Assessment Material (1))
Which of the following statements is true?
Intermolecular_Forces__Liquids_and_Solids : ElectricalConductivity (8 Variations)   
(Assessment Material (1))
Which of the following has the greatest electrical conductivity?
Intermolecular_Forces__Liquids_and_Solids : ClassifySolids (10 Variations)   
(Assessment Material (1))
Classify each of the following substances, in the solid state, as molecular, ionic, covalent network, or metallic.

Substance Appearance Melting Pt. (¬?C) Boiling Pt. (¬?C) Conducts as solid Conducts as liquid
A Colorless crystal -121 20.8 no no
B Colorless crystal 846 1505 no yes
C Silvery gray 1675 3260 yes yes
D Colorless crystal 1713 2590 no no

Matter_and_Measurement : UseDensity (10 Variations)   
(Assessment Material (1))
If a 10.0 inch aluminum skillet weighs 3 pounds, how many cm3 of aluminum does it contain? The density of aluminum is 2.70 g/cm3.
Matter_and_Measurement : PhysOrChemChange (10 Variations)   
(Assessment Material (1))
Which of the following are physical changes?
Matter_and_Measurement : CalcDensity (5 Variations)   
(Assessment Material (1))
What is the density of a 7000 gram brick that is 4 inches x 5 inches x 3 inches?
Gases : GasProperties (9 Variations)   
(Assessment Material (1))
Which of the following is NOT a property of gases?
Matter_and_Measurement : QualQuantObserv (10 Variations)   
(Assessment Material (1))
Which of the following statements are quantitative observations about carbon?
Motion-Science for Kids   
(Activity, Instructional Material (8))
ACS Science for Kids activities explore the properties of objects in motion and the effects of friction.
Graphing   
(Activity, Instructional Material (7))
ACS Science for Kids activities explore the aspects of recording scientific data and presenting that data in useful graphs.
Nutrition   
(Activity, Instructional Material (7))
ACS Science for Kids activities that explore the chemical properties of food and nutrition.
Characteristics of Materials   
(Activity, Instructional Material (7), Test, Assessment Material (15))
What makes diapers absorbent? Is peanut butter stickier than syrup or jelly? Strong, stretchy, sticky, or sweet—everything around us has special properties which make them unique. See if you can identify and compare the characteristics of materials.
Toys-ACS Science for Kids   
(Activity, Instructional Material (6))
ACS Science for Kids activities explore how chemistry can be used to make toys.
Density   
(Activity, Instructional Material (5))
ACS Science for Kids activities explore the concept of density and how it can explain when objects float or sink in a liquid.
States of Matter   
(Activity, Instructional Material (4))
ACS Science for Kids activities explore phase changes of matter and their properties.
Art & Toys   
(Activity, Instructional Material (2), Test, Assessment Material (5))
ACS Science for Kids activities exploring the chemistry involved in art and toys.
Motion & Energy   
(Activity, Instructional Material (13), Test, Assessment Material (2))
ACS Science for Kids activities and assessments that explore aspects of motion and energy.
Art-ACS Science for Kids   
(Activity, Instructional Material (12))
ACS Science for Kids activities exploring the chemistry involved in art.
Building   
(Activity, Instructional Material (12))
ACS Science for Kids activities exploring the chemistry behind building many everyday objects and structures.
Alcohols and Ethers (22 Variations)   
()
A collection of 22 assessment questions about Alcohols and Ethers
Nomenclature (10 Variations)   
()
A collection of 10 assessment questions about Nomenclature
Archimedes Eureka!   
()
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Gold Jewelry   
()
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Chemistry in Physics   
()
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Glass Density Evidence   
()
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Sorting recyclable plastics by density   
()
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Sugar Solution Density; Canning, Maple Syrup, and Pousse Cafes   
()
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Lava Lamps   
()
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Density in Geology   
()
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Density Lecture Demonstrations   
()
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Physical Properties Lecture Demonstrations   
()
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
The Platinum Flute   
()
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Floating Footballs   
()
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.