# All Demos

## Absorption of Colored Light by Blood

A bright red LED light shines easily through your thumb, but green doesn't.

## Absorption Spectra

Dyes and neodymium glass absorb portions of the spectrum.

## Acid-Base Titration Computer Simulation

Acid-Base Titration Computer Simulation A visual approach to learning how to perform acid-base titration procedures, techniques anda the application of sstoichiometry to acid-base titration calculations

## Activity Series of Metals Computer Simulation

Activity Series of Metals Computer Simulation provides students with the tools to develop thier own activity series of metals. An effective guided-inquiry (POGIL-ish) student tutorial is avaialbe.

## Activity Series of Metals Demonstration

An activity series of metals is induced from the redox reactions of various metals in ionic salt solutions.

## Aldol Clock

A solution of cinnamaldehyde and acetone suddenly turns bright yellow after induction period.

## Alkali Metal Reactivity

Lithium, sodium, and potassium react vigorously with water.

## Amonton's Law

The apparatus consists of a fixed volume metal sphere, which contains a gas, connected to a large pressure gauge. The pressure of the sample of gas varies directly as a function of temperature.

## Atmosphere Bar

The end of a long aluminum bar exerts 14 psi.

## Avalanche!

Students investigate the factors that affect avalanches.

## Beer's Law

A flask filled with orange solution demonstrates the dependance of absorbance on path length.

## Boiling Cold Water Under Reduced Pressure: Phase Diagram of Water

Water boils at room temperature when pressure is reduced by using a vacuum pump.

## Boiling Water: Heating Curve

Heating water from room temperature to boiling water and measuring the temperature of the liquid versus time produces a portion of the Heating Curve for water.

## Boyle's Law Computer Simulation

Boyle's Law Computer Simulation

## Bromination of Acetone

Solution turns from yellow-orange to colorless.

## Bromination of Pringles

Crushed potato chips remove bromine vapor from flask.

## Bromine Equilibrium: Bromine Vapor Pressure Computer Animation

A computer animation of the equilibrium established between the liquid and gas phases of bromine.

## Bromine: Liquid and Gas Phases A computer Animation

A representation of liquid and gas phases of bromine.

## Buffer Capacity

Acid and base added to buffers of various concentrations to show capacity and how it is affected.

## Buffer Capacity of Alka-Seltzer™

Different size tablets of Alka-Seltzer™ dissolved in water will neutralize different amounts of acid and base.

## Buffer Solution (Acetic Acid/Acetate) vs. Water pH

The pH of an acetic acid/sodium acetate buffer solution is compared to the pH of water. The buffer soluiton resists the change in pH when acid and base are added.

## Buffer solution pH Computer Simulation

Buffer solution pH Computer Simulation measure the pH of various solutions created by mixing a weak acid (i.e. acetic acid) with the salt of the weak acid (i.e. sodium acetate).

## Calorimetry Computer Simulation NEW html5 version

Calorimetry Computer Simulation is used to determine the heat exchanged in a variety of physical and chemical processes. NEW html5 version

## Calorimetry Heat of Solution Computer Simulation

A computer simulation designed to simulate a calorimeter experiment. Determine the heat of solution of a salt. Dissolving various substances in water, measure the mass of the salt, the intial temperature of the water, and the final temperature of the resultant solution.

## Calorimetry:Heat Exchange Hot Metal in Cold Water Computer Simulation

Calorimetry: Hot Metal in Cold Water Heat Exchange Computer Simulation Old Flash-Based

## Capillary Action

Colored water is carried up glass tubes by capillary action.

## Catalysis Hydrogenation of Ethene Computer Animation

Catalysis Hydrogenation of Ethene Computer Animation

## Catalysis Nitric Oxide to N2 and O2 using Pt(s) Computer Animation by Cengage

Catalysis Nitric Oxide to Nitrogen gas and Oxygen gas using Pt(s) Computer Animation by Cengage

## Catalytic Converter

A cutaway of an actual converter shows its inner workings.

## Cathode Ray Tubes

An electron beam in a catahode ray tube can be deflected with a magnetic or electric field. An electron beam can cause a pinwheel in a CRT to turn. When an object is placed in the path of an electron beam, the rays cast a shadow.

## Charles' Law Computer Simulation

Charles' Law Computer Simulation

## Cheeto Calorimetry

A burning Cheeto heats water. Temperature rise is monitored.

## Chemical Kinetics Experiment Computer Simulation

Chemical Kinetics Experiment Computer Simulation

## Citric acid vs. Hydrochloric acid Concentration and Conductivity

Citric acid vs. Hydrochloric acid Concentration and Conductivity

## Collapsing Can: Gas Laws Atmospheric Pressure

A small amount of water is heated to boiling in a metal can (aluminum soda/pop can or large 20 L solvent can) filling it with water vapor. The can is removed from heat, sealed, and cooled. Alternatively, a vacuum is applied to an empty can, as the air in the can is evacuated, the can collapses. In both cases the can collapses quickly and dramatically. The collapsing of the can is due to the greater applied atmospheric pressure compared to the less pressure inside the can.

## Colligative Properties Freezing-point depression and boiling-point elevation Computer Simulation

Colligative Properties of Solutions: Freezing-point depression and boiling-point elevation. A computer simulation

## Colligative Property: BoilingPt/FreezingPt Experiment Comptuer Simulation

Colligative Property: BoilingPointt/FreezingPoint Experiment Computer Simulation

## Combustion of Componds Stoichiometry Computer Simulation New HTML5 Version

Stoichiometry Computer Simulation New HTML5 Version https://media.pearsoncmg.com/bc/bc_0media_chem/chem_sim/html5/stoich/Stoich.php

## Combustion of Magnesium

Magnesium burns brightly in air.

## Combustion of Propane

Combustion of Propane

## Common Ion Effect

The addition of concentrated hydrochloric acid to a saturated solution of sodium chloride causes solid sodium chloride to precipitate out.

## Comparing Specific Heats of Metals

Comparing Specific Heats of Metals

## Conductivity of Acids and Bases

Compares conductivity of strong and weak acids and bases.

## Conductivity of Ammonium Acetate

Ammonium acetate conducts electricity when it is melted.

## Conductivity of Electrolytes Demonstration

When a current is applied to an aqeous solution, strong electrolyte solutions light up a light bulb, weak electrolyte solutions dimly light a bulb, and nonelectrolyte solutions do not light a bulb.

## Conductivity Testing of Electrolytes Computer Simulation

Conductivity Testing of Electrolytes Computer Simulation

## Conservation of Mass

Flashbulb weighs the same before and after ignition.

## Copper and Nitric Acid

Nitric acid reacts with copper metal to produce reddish-brown nitrogen dioxide gas.

## Copper-Ammonia Complex

Copper chloride solution forms a pale blue precipitate then a deep blue solution as ammonia is added.

## Counting Units

A pairs, a dozen, a six-pack, a gross, and a ream are used to introduce the mole.

## Crystal Cleavage

Sodium chloride crystals cleave evenly along an orthogonal plane.

## Crystal Models

A collection of thirteen models of metallic and ionic crystal lattices for display in classroom.

## Daniell Electrochemical Cell (Galvanic Cell) and the Gravity Galvanic Cell

In the original version of the Daniell cell a porous cup containing sulfuric acid and a zinc electrode is placed in a copper container filled with 1.0 M copper(II) sulfate solution.

## Decomposition of Silver Oxide

Black silver oxide yields metallic silver and oxygen gas.

## Demo Show Demo Descriptions

Descriptions and risk management plans of all demos used in demo shows.

An Excel spreadsheet to aid instructors in the selection of demos.

## Density

Containers filled with equal volumes of substances of varying densities.

## Determine the Identity of a Substance Computer Simulation

Determine the Identity of a Substance Computer Simulation

## Dissolving an ionic salt in water Computer Simulation and Computer Animation

A short computer animation illustration how positive and negative ions in a solid ionic compound dissolve in water might be used to accompany the dissolving salts in water demonstration.

## Dissolving Ionic Salts in Water Demonstration

Several ionic salts (calcium chloride, ammonium nitrate, potassium chloride, magnesiium sulfate, lithium chloride, anhydrous sodium acetae, anhydrous sodium carbonate) are dissolved in water in a calorimeter. A thermomters measures the intitial temperature of the water and the final temperature of the resultant solution. Dissolving ionic salts in water can be used to illustrate formation of Solutions, Enthalpy, Lattice Energy, etc.

## Dry Erase Markers

Students can write on the walls of Columbia 150 using dry-erase markers.

## Dry Ice Bubbles

Soap bubbles float in a glasss tank filled with carbon dioxide.

## Effect of Temperature on Reaction Rates Bleaching Dye Computer Animation Cengage

Effect of Temperature on Reaction Rates Bleaching Dye Computer Animation Cengage

## Effusion of Gases Experiment Computer Simulation

Effusion of Gases Experiment Computer Simulation

## Effusion of Hydrogen Gas versus Oxygen Gas Computer Simulation

Effusion of Hydrogen Gas versus Oxygen Gas Computer Simulation

## Electric Pickle

A whole pickle is placed between two metal electrodes and electricity is passed through the pickle. The characteristic color of a sodium vapor lamp is emitted.

## Electrochemical Cells Computer Simulation Concentration Cells Nernst Cells

Electrochemical Cells Computer Simulaiton Voltaic Cells Concentration Cells Nernst Cell

## Electrochemical Cells Computer Simulation: Voltaic Cells: Zn Cu Ag

Computer Simulation of various voltaic cells involving Zn Cu and Ag metal electrodes and aqueous solutions of zinc sulfate, copper(II) sulfate, and silver nitrate. Choices of concetration of solutions are available to investigate concentration cells. Computer animations of the oxidation and reduction half-reaction processes occuring in electrochemical cells: Voltaic Cells. Computer Animations of the migration of ions in a salt brdige and the movement of electrons in a wire.

## Electrolysis Active Learning Instructional Sequence

Electrolysis Active Learning Instructional Sequence. using a) an instructional activity sheet, b) the electrolysis computer simulation, c) electrolysis lecture demonstrations, and d) PowerPoint Notes to guide the flow of instruction.

## Electrolysis Computer Simulation New HTML5 Version

Electrolysis metal-metal cells computer simulation New HTML5 Version http://media.pearsoncmg.com/bc/bc_0media_chem/chem_sim/html5/Electro/Electro.php

## Electrolysis of Water Demonstration

Water decomposes into hydrogen gas and oxygen gas by electrolysis.

## Electrolysis Part 1 Active Learning Instructional Activity

Electrolysis Part 1 Acrtive Learning Instructional Activity

## Electrolytes vs. Non-electrolytes

Conductivity of strong electrolytes, weak electrolytes, and non-electrolytes is compared.

## Electrolytic Cell: Plating copper on copper

Electrolytic Cell: two copper electrodes in 1.0 M CuSO4(aq) are connected to a D.C. Power Supply. When current is applied to the electrolysis cell copper(II) ions iare reduced to copper atoms at the cathode and copper atoms are oxidized to coppere(II) ions at the anode. The time to plate the metal is recorded along with the current (amps).

## Electrolytic Cell: Plating Zinc on Copper Demonstration

Zinc metal is plated onto a copper electrode by electrolysis.

## Elements

A collection of elements.

## Elephant's Toothpaste

Rapid decomposition of hydrogen peroxide shoots up a column of suds.

## Emission Spectra

Various gases emit line spectra.

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A classroom set of two six-sided dice per student (one red and one white) provides an interactive activity that helps students to understand the nature of entropy.

## Ethanol Cannon

Combustion of ethanol vapor shoots a stopper out of a bottle.

## Evaporation versus Boiling: A Video Presentation

Evaporation versus Boiling: A Video Presentation

## Exothermic and Endothermic Reactions: Hot and Cold Packs

When calcium chloride dissoves in water the resultant solution becomes hot. When ammonium chloride disssolves in water the resultant solution becomes cold.

## Fehling Test

When blue Fehling's reagent is added to glucose and fructose solution a brick-red precipitate forms - no rxn with sucrose.

## Ferrofluid

Liquid is attracted to a magnet.

## Fifty-five Gallon Drum Crush

Atmospheric pressure crushes a drum.

## Flame Test

Flammable solutions of metal salts are sprayed into a burner to create colorful flames.

## Flaming Coffee Creamer

Coffee creamer flares up when poured on torch flame.

## Float or Sink?

Water ice floats in water, but solid t-butanol sinks in liquid t-butanol.

## Frozen Board: An endothermic reaction

An endothermic reaction freezes water and a beaker to a board.

## Gas Law: Manometer Computer Simulation

Gas Law: Manometer Computer Simulation

## Graham's Law of Diffusion: Helium Voice Wizard of Oz Munchkins

Instructors and the Lecture Demonstrator dress up as the Lollipop Guild people in the Wizard of Oz and sing the Lollipop Guild song with Helium gas in their voice box

## Graham's Law: Diffusion of ammonia gas and HCl(g)

A cloud of white ammonium chloride forms at the mouth of a flask contianing HCl.

## Heat of Neutralization Reaction II: HCl(aq) + NaOH(aq) Amounts of Reactants

Amounts of reactants influences the change in temperature and the heat exchanged during an acid-base neutralization reaction, HCl(aq) + NaOH(aq), but the value for the change in enthalpy is constant.

## Heat of Neutralization: HCl(aq) + NaOH(aq)

Heat of Neutralization: The initial temperature of 50.0 mL of 3.0 M HCl and a 3.0 M NaOH are measured using a digital thermometer probe. The HCl and NaOH react a calorimeter. The final temperature of the resultant solution is measured. The heat exchanged between the chemcial reaction and the solution is calculated. The change in enthalpy of the reaction, ∆H, the heat of neutralization is determined.

## High Density vs Low Density Polyethylene

Hands-on activity compares properties of plastics.

## Household Chemicals

A collection of household chemicals for exhibit in the classroom.

## Household Fenton's Reagent

Potassium hydrogen tartrate is oxidized to produce carbon dioxide in an exothermic reaction.

## How Hefty Is That Bag?

Classroom activity compares properties of polymers.

## Hybridization, Sigma and Pi Bonds Model Kit

Large-scale molecular model kit depicting sp, sp2, sp3 hybridization of carbon, sigma and pi bonding orbitals.

## Hydrogen Balloon

A hydrogen filled balloon is ignited and explodes.

## Hydrolysis of Salts: pH

When soluble ioinc slats are dissoved in water the pH changes due an increase or decrease of hydronium ions, plus oher ions. Hydronium ions generated or consumed by the conjuate acid-base pairs, cause the pH to change and cuase a corresponding acid-base indicator color change.

## Indicator Cylinder

Dry ice changes the colors of a universal indicator solution.

## Intermolecular Force Activites Pure Substances and Mixtures: Parts I, II, III and IV

Activity Parts I and II: Students work in pairs to model intermolecular forces by labeling and manipulating plastic arrows and rectangles: General structures, IMFs in pure substances, IMFs in a mixture. Activity Part III: Students work in pairs by labeling and manipulating plastic arrows and rectangles with specific structures, or real compounds: KBr, ethane, ethanol, dimethy ether; identify IMFs in pure substances and IMFs in a mixture, place the arrow with the IMF to connect opposite charges.

## Intermolecular Forces and Molecular Models Activity

Students work in groups to construct models and connect the models by rubber bands representing an intermolecular force. Students a. identify the partial positive charge atoms and the partial negative charge atoms in each model that are involved in the IMF, b. calculate the difference in electronegativity between the opposite charged atoms, c. select the appropriate rubber band width to correlate with the strength of the IMF between models, d. correlate the strength of the IMF to a physical property of the liquid state of the compound - boiling point and Heat of Vaporization.

## Iodine Clock Kinetics Demonstration: Influence of Concentration on the Rate of Reaction

Two colorless solutions are mixed and after a brief induction period, the resultant colorless clear solution suddenly turns to a blue-black color. Changing the concentration of reactants in this clock reaction changes the induction period. This demonstration can be performed qualitatively or quantitatively.

## Ionization Energies of Elements Computer Simulation

Ionization Energies of Elements Computer Simulation

## Iron and Oxygen

Steel wool burns brilliantly in pure oxygen.

## Kinetic Molecular Theory Computer Simulation New HTML5 Version

Gas Laws: Kinetic Molecular Theory Computer Simulation. This simulation provides the ability to change the conditions (pressure, volume, temperature and number of moels of gas) of ideal gases, determine their relationships, and observe how the change affects the behavior of gas particles. Various physical principles can be investigated: Boyle's Law, Charles' law, Amonton's Law, Dalton's Law of Partial Pressure, Graham's Law, in addition to the Kinetic Molecular Theory.

## Le Chatelier's Principle - Copper Ion

A copper(II) chloride solution alternates between blue and green when ligand concentrations change.

## Lightstick Mechanism

A chemiluminescent base-catalyzed nucleophilic acyl substitution reaction.

## Lightstick Reaction Rates versus Temperature

Light sticks glow with different intensities at different temperatures, illustratinh how temperature affects rates of reaction.

## Limiting Reactant: Reaction of Mg with HCl

Limiting Reactant: Reaction of Mg with HCl The amount of hydrogen gas produced by the reaction of three different quantities of Mg in the same numbere of moles of HCl is observed. Students are provided with the moles of magnesium and moles of hydrochloric acid and are asked to predict the relative amount of hydrogen gas produced in each reaction. Students determine the limiting reagent in each flask.

## Liquid Carbon Dioxide

Dry ice melts and boils at the same time.

## Liquid Nitrogen Balloon: Charles' Law

A balloon collapses when liquid nitrogen is poured over it.

## Liquid Oxygen as an Oxidizing Agent

A cigarette burns fiercely after being immersed in liquid oxygen.

## Liter Cube

A wooden cubic decimeter is cut up into cubic millimeters.

## London Dispersion Forces Between Three Atoms Video

London Dispersion Forces Between Three Atoms

## Lycopumpkin

Lycopodium powder bursts into a fireball when dispersed.

## Magnesium and Hydrochloric Acid

Magnesium metal reacts with hydrochloric acid react to produce bubbles of hydrogen gas and aqueous magnesium chloride.

## Manometer Computer Simulation

Manometer Computer Simulation

## Mechanism of the Decompsition of N2O5 Computer Animation Cengage

Mechanism of the Decompsition of N2O5 Computer Animation Cengage

## Migration of ions During a Conductivity Test of NaCl(aq) Computer Animation

Migration of ions During a Conductivity Test of NaCl(aq) Computer Animation

## Mole Ball and Box

A beach ball and a wooden box show how big a mole of gas is.

## Mole Sampler

A collection of one mole of various elements and compounds. "Testing"

## NO2/N2O4 Equilibrium Computer Simulation

NO2/N2O4 Equilibrium Computer Simulation

## NO2/N2O4 Equilibrium Demonstration

The equilibrium visibly changes with temperature.

## Nuts and Bolts Periodicity

Hardware illustrates the nature of periodicity.

## One In A Million

A transparent globe filled with about a million nonpariels.

## Orange Juice Clock Reaction

Household chemicals turn orange juice black.

## Orbital Viewer

Modeling program for molecular orbitals.

## Osmosis computer animation

Osmosis computer animation

## Outreach Program Document Templates

Template documents for approved chemistry demonstration outreach program.

## Paramagnetism of Liquid Oxygen

Liquid oxygen is attracted to a magnet.

## Paramagnetism of Transition Metal Salts

Solid salts are attracted to a magnet.

## Periodic Trends Class Activity

Periodic Trends Class Activity

## Periodic Trends Computer Simulation

Periodic Trends Computer Simulation A computer simulation providing data for student to explore the periodic trends with respect to atomic radius, first ionization energy, electron affinity, ionic size, etc.

## pH measurement of acid, base and ionic salt solutions Computer Simulation

pH measurement of acid, base and ionic salt solutions Computer Simulation Measure the pH of various solutions.

## Photoelectric Effect

UV light discharges a negatively charged zinc plate.

## Photoelectric Effect Computer Simulation PHET

An excellent computer simulation enabling students to visualize many aspects of the photoelectric effect experiment.

## Photoelectric Effect Interactive Lecture Presentation

Photoelectric Effect Interactive Lecture Presentation

## Physical and Chemical Changes A Computer Simulation

Physical and Chemical Changes A Computer Simulation

## Physical/Chemical Properties of Copper

Properties of copper are demonstrated.

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Formation of a bright yellow precipitate.

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When lead(II) nitrate and potaasium iodide are mixed in water, students observe the formation of a bright yellow precipitate, lead(II) iodide.

## Precipitation of Silver Chloride

Formation of a white precipitate.

## Properties of Gases: Laboratory Techniques

Properties of Gases: Laboratory Techniques

## Properties of Polymers

In this hand-on class activity, samples of various polymers classes illustrate variable properties within and between classes.

## Properties of Two Ionic Salts (Crystals): Halite and Calcite

When a large halite crystal, NaCl(s), is struck with a hammer, it cleaves evenly, 90° straight edges. When a large calcite crystal, CaCO3(s), is struck with a hammer, it cleaves at a slant angle. A crystal of halite, sodium chloride, does not conduct, but when it is pulverized and dissolved it does conduct. A crystal of calcite, calcium carbonate, when placed in water does not dissolve.

A Geiger counter indicates the presence of radioactive sources.

## Reaction of Aluminum and Bromine

Bromine and aluminum react to produce yellow light and orange vapor.

## Reaction of Iron and Sulfur

Iron combines with sulfur in a glowing, flaming reaction.

## Reaction of potassium with water

Reaction of potassium with water

## REDOX Titration in Acidic Solution Computer Simulation

REDOX Titration in Acidic Solution Computer Simulation

## Reduction of Silver Ion by Copper

Silver crystals form on copper.

## Relative Evaporation Rates: Intermolecular Forces

A drop of acetone evaporates faster than ethanol, the ethanol evaporates faster than a drop of water.

## Rutherford's Gold Foil Experiment

A video compuer simulation of Rutherford's Gold Foil Experiment

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A transparent casing shows the "guts" of a car battery.

## Shock Sensitive Nitrogen Triiodide Video

Reaction of Nitrogen Triiodide Video

## Single Displacement Reaction: Zinc and Copper(II) Ion REDOX

Copper plates out on a strip of zinc immersed in a solution of aqueous copper(II) sulfate.

## Small Scale Model Kits

A high quality set of molecular model kits that students can use at their seats.

## Solubility of Carbon Dioxide

Two bottles of carbonated water are opened, one cold and one warm and agitated. The warm one spurts all over.

## Solutions: Like Dissolves Like Solubility and Intermolecular Forces

Water and Hexane are the solvents. Iodine and potassium permanganate are the solutes. Iodine dissolves in hexane. Potassium permanganate dissolves in water.

## Spec 20: [CoCl4]2- Computer Simulation

Spec 20: [CoCl4]2- Computer Simulation

## Spontaneous Dehydration of Sucrose

The spontaneous dehydration of sugar grows gray-black.

## Standing Waves

Standing waves are generated in a weighted length of rubber tubing.

## States of Bromine

Bromine is cooled to form crystals.

## States of Matter Solid, Liquid, Gas: Computer animations

Individual States of Matter Solid, Liquid, Gas and represented by Computer animations Boiling, Freezing, Vapor Pressure are implied.

## SuperChem 221 Schedule

This page allows you to view the current Superchem schedule. Please do not click the "Schedule Demo" button.

## Supersaturated Sodium Acetate

Crystals of sodium acetate grow very quickly.

## Synthesis of Nylon

When two immiscible solutions are poured into a dish, solid nylon forms at the interface.

## Thermal Motion of Atoms in a Metal Computer Simulation

A computer simulation of the motion of atoms in a metal as a function of energy.

## Thermite Reaction: aluminum reacts with iron(III) oxide

Aluminum and iron (III) oxide react to produce molten iron, aluminum oxide, and a tremendous amount of heat.

## These Are Not the Bonds You're Looking For: Introduction to Resonance Structures

A parody of one scene in Star Wars Episode IV A New Hope. Obi-Wan Kanobi, Luke Skywalker, C3PO and R2D2 enter Mos Eisley on Tatoonie. They are stopped by Stormtroopers and questioned about the droids they are transporting. In the skit, Obi-Wan Kanobi and Luke Skywalker are tranporting ozone and calcum carbonate.

## Three States of Matter: Solid, Liquid, Gas Particulate Animation

Three States of Matter: Solid, Liquid, Gas re represented at the particle level (molecular scenes) by a series of Particulate Animations.

## Transition State and Activation Energy of NO + O3 Computer Animation by Cengage

Transition State and Activation Energy of NO + O3 Computer Animation by Cengage

## Tyndall Effect

Light is scattered by a suspension of ferric oxide in water.

## Using pH paper to measure the pH of solutions Computer Simulation

Using pH paper to measure the pH of solutions Computer Simulation

## Vapor Pressure of Solutions Computer Simulation

Vapor Pressure of Solutions Computer Simulation

## Vapor Pressure of Solutions Computer Simulation

Vapor Pressure of Solutions Computer Simulation

## Vapor Pressure of Solutions III Computer Simulation

Vapor Pressure and Osmotic Pressure of Solutions III Computer Simulation

## Vapor Pressure of Solvents and Solutions Computer Simulation

Vapor Pressure of Solvents and Solutions Computer Simulation

## Videorecording Session

Record videos and post them to the web.

## Viscosity

A small metal ball falls much more slowly through glycerine than through water.

## Voltaic Cell: Zinc/Copper Electrochemcial Cell E° = 1.10 V Demonstration

A standard Zinc/Copper Voltaic Cell: Zn(s) in 1.0 M zinc sulfate solution, Cu(s) in a 1.0 M copper(II) sulfate solution, salt bridge and voltmeter, E°cell = +1.10 Volts.

## Voltaic Cell: Cu/Cu concentration cell Demonstration

Voltaic Cell: Cu/Cu concentration cell

## Voltaic Cell: Standard Hydrogen Electrode Computer Animation

A computer animation representing what occurs at the Pt(s) electrode of a standard hydrogen electrode (SHE)

## Voltaic Cell: Standard Hydrogen Electrode Demonstration

A Standard Hydrogen Electrode (SHE) is used to show the E°cell generated when a SHE is connected to a zinc or a copper half-cell.

## Volumetric Glassware

A collection of various devices used to measure volume in the lab.

## VSEPR Ball and Stick Molecular Models

VSEPR Ball and Stick Molecular Models

## VSEPR Balloons

Ballon shapes demonstrate the principle of electron-pair repusion.

## VSEPR Balloons: Shapes of Electron Domains Around a Central Atom

VSEPR Balloons of the five basic shapes of molecules,

## VSEPR Boxes

Large molecular models are placed in polyhedral boxes.

## VSEPR Molecular Shapes Student Model Kits

Students visualize and represent molecules in 3-Dimensions. High quality plastic individual model kits for VSEPR configurations are used to enable students to build molecular models. Using an active learning approacah, given a molecular formula, students draw the Lewis Structure, Identify the total regions of electron domains around the central atom, build the model of the molecule, draw a 3D representation of the molecule, identify the molecular shape, identify the bond angles, and classify the molecule as polar or non-polar.

## VSEPR Ropes

In-class activity makes sense of VSEPR shapes.

## Water Vapor Dynamic Equilibrium Open and Closed Systems Video

Water Vapor Dynamic Equilibrium Open and Closed Systems evaporation and condensation

## What's In A Name? Part 1: Comparing KCl(aq) and aqeous potassium chlorate reactions with aqueous silver nitrate; Part 2: Comparing hot KCl vs potassium chlorate reaction with sugar ("Gummi Bear")

The non-reaction of potassium chloride with sucrose is contrasted with the reaction of potassium chlorate with sucrose to illustrate the importance the structure of anions and of nomenclature details.

## Zinc Complex Ion Formation

Zinc ion is precipitated by sodium hydroxide. The addition of more hydroxide redissolves the precipitate.

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© Copyright 2012 Email: Randy Sullivan, University of Oregon Chemistry Department and UO Libraries Interactive Media Group