Activities

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- Download All Files (ZIP)
- Before the Activity Files
- Gas Lab.pdf
Alignment
- Standards Alignment
- Textbook Alignment
Subject Area
- Science: Chemistry: Gases, Liquids and Solids
Author

John Sebranek
Level

9-12
College
Activity Time

5 Days
Device
- TI-84 Plus
- TI-84 Plus Silver Edition
Applications
- EasyData® for TI-83 Plus and TI-84 Plus
Accessories

Sensor - Barometer
Sensor - Temperature
Other Materials

Gas storage tanks with oxygen and argon and other cheap gases. 2.5 L glass acid bottle, 6 inch ring clamp, ring stand, plastic water tray, latex tubing, two-hole rubber stopper with glass rods for tube attachment points, thermometer, barometer, rules, water, 7 inch balloons, eye dropper, #1 one-hole rubber stopper, large graduated cylinders
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Gas Lab

Activity Overview

Students determine the molecular weight of a pure gas in a balloon by using gas laws and trapping the gas in a glass bottle. Students watch the instructor demonstrate the lab on day one. On day two and three they practice the lab. On day four we discuss the lab and all the calculations. On day 5 students team up and complete a lab quiz. Their instructor fills their balloon with an unknown pure gas from a storage tank. Students are awarded points based on how close they report the gas mass.

Before the Activity

Students should have access to the TI-84 Plus family of calculators.

During the Activity

Students determine the molecular weight of a pure gas in a balloon by using gas laws and trapping the gas in a glass bottle.

After the Activity

Review student answers:

As a class, discuss questions that appeared to be more challenging

Re-teach concepts as necessary

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Download

Before the Activity Files

Alignment

Subject Area

Author

Level

Activity Time

Device

Applications

EasyData® for TI-83 Plus and TI-84 Plus

Accessories

Other Materials