Gases- Barometer Made of Dense Aqueous Solution- Do not publish not in practice

Ammonia Fountain

Boyle’s Law and the Mass of a Textbook

Boyle’s Law- J-Tube

Boyled Whip Cream

Collapsing a 55-Galloon Drum

Collapsing Aluminum Can

Collapsing Can

Diffusion of Bromine Vapor

Effect of Pressure on the Size of a Balloon

Egg in a Flask- Thermal Decrease in Molar Volume

Flow of Gases Through a Porous Cup

Mercury Barometers

Professor in a Bag

Rate of Diffusion: The Ammonium Chloride Ring

Thermal Expansion of Gases

Visible Mole

Balloon Inside a Flask

Barometer Made of Dense Aqueous Solution

Bobbing Raisins

Boltzmann: Digital Simulation of Kinetic Molecular Theory

Boyle’s Law and the Monster Marshmallow

PhET Simulation of Gas Behavior

Effect of Pressure Differences on a Balloon in a Flask

Extinguishing Candles With Carbon Dioxide

Lead Balloon

A Metal Bar to Demonstrate One Atmosphere

Relation of Gas Pressure and Temperature

Transport of Carbon Dioxide Through a Soap Film

Digital Molecular Theory Simulator

Superheated Steam

Barometer Made of Dense Aqueous Solution

Description: Video of a ten-foot barometer filled with a solution of potassium tetraiodomercurate (II). The density of the solution is reactive to the size of the barometer.

This demonstration is also available on JCE “Chemistry Comes Alive!” Vol. 2 CD-Rom

Source: JCE software “Chemistry Comes Alive!”

Year: 1999  Vol: 76  Page:  1311

Keywords: Barometer, Potassium tetraiodomercurate (II), Density

Rating:

Hazard: Low

• Not a lecture experiment; video only

Effectiveness: Average

• Mild effects are seen by audience
• Good reliability

Difficulty: Low

• Simple manipulations

Safety Precautions:

• Use UL approved three-prong plug and outlet

Class: Gas Laws, Video

Division: General

 

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