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Gas Phase Equilibrium—Student Laboratory Kit

By: The Flinn Staff

Item #: AP6629

Price: $25.05

In Stock.

The Gas Phase Equilibrium Chemistry Laboratory Kit is just what you need to heighten students’ interest in equilibrium topics! Provide them with the tools they need to conduct a simulation of smog production and ozone depletion.

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This item can only be shipped to schools, museums and science centers

Product Details

This real-world application kit is just what you need to heighten your students’ interest in equilibrium topics! Provide them with the tools they need to conduct an exciting simulation of smog production and ozone depletion experiments in your lab. Introduce microscale techniques to investigate how temperature and pressure affect gas-phase reactions by studying the combination reaction of nitrogen dioxide, a reddish brown gas, to form a colorless dinitrogen tetroxide gas. The gas mixture is safely sealed in a polyethylene pipet bulb and then exposed to changes in temperature and pressure. The cool color changes will help your students predict the position of the equilibrium changes as the temperature and pressure change. Concepts of LeChâtelier’s principle may be applied to determine whether the reaction is exothermic or endothermic. Includes reproducible student handouts, detailed background information and complete Teacher Notes with sample data and answers to all questions.

Complete for 30 students working in pairs.


Materials Included in Kit: 
Copper foil, 1" x 12" strip
Nitric acid, concentrated, 25 mL
Foil barrier bag, 4½" x 3" x 12" x 4.3 mil nylon
Transfer pipet, narrow stem, 15 mL capacity bulb, 45

Correlation to Next Generation Science Standards (NGSS)

Science & Engineering Practices

Developing and using models
Planning and carrying out investigations
Analyzing and interpreting data
Constructing explanations and designing solutions

Disciplinary Core Ideas

MS-PS1.A: Structure and Properties of Matter
MS-PS1.B: Chemical Reactions
MS-ESS3.D: Global Climate Change
HS-PS1.A: Structure and Properties of Matter
HS-PS1.B: Chemical Reactions
HS-ESS2.D: Weather and Climate

Crosscutting Concepts

Scale, proportion, and quantity
Systems and system models
Stability and change

Performance Expectations

MS-PS1-2: Analyze and interpret data on the properties of substances before and after the substances interact to determine if a chemical reaction has occurred.
MS-PS1-4: Develop a model that predicts and describes changes in particle motion, temperature, and state of a pure substance when thermal energy is added or removed.