Page 99 - Demo

“Your Safer Source for Science” Gases and the Gas Laws
Gases and the Gas Laws
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Laboratory Kits ................................................ 97–101 Demonstration Kits ........................................ 101–103
Gases and the Gas Laws—Laboratory Kits
Common Gases—
Student Laboratory Kit
By: The Flinn Staff
Colorless, odorless, tasteless—the chemical and physical properties of many gases make them invisible to our senses. But we know they exist because gases have properties we can test. Some gases are lighter than air. Other gases are flammable. While others have a distinct odor or color. In this experiment, students prepare microscale amounts of five common gases: hydrogen, oxygen, carbon dioxide, nitrogen diox- ide, and ammonia. They then investigate the characteristic physical and chemical properties of these gases. Includes reproducible student handouts, detailed background information, Instructor’s Notes, and all necessary chemicals and consumable supplies.
Complete for 30 students working in pairs. Super Value Kit is complete for 5 classes of 30 students working in pairs. Perform this experiment in a fume hood or well-ventilated lab.
Flinn’s Exploring ChemistryTM— Gases and Gas Laws Package See page 30.
Dissolved Oxygen and Temperature—
Student Laboratory Kit
By: The Flinn Staff
Why are fish jumping out of the water in the heat of summer? Without a critical supply of dissolved oxygen, fish and other aquatic organisms would not survive. How do environmental factors such as temperature affect the level of dissolved oxygen? In this cooperative lab activity, students analyze water samples at various temperatures using the Winkler method, a standard wet-chemical technique for determining the amount of oxygen dissolved in water. After pooling their data and graphing and analyzing the results, students learn about the relation- ship between dissolved oxygen and water quality. Small-scale titration procedure gives accurate results! Includes detailed Instructor’s Notes, extensive background material, and reproducible student handouts, and all necessary chemicals and specialized equipment.
Complete for 30 students working in pairs.
Common Gases—Student Laboratory Kit AP6638
Catalog No.
Description
Price/Each
AP6638
Common Gases—Student Laboratory Kit
$34.35
AP7584
Common Gases—Super Value Laboratory Kit
68.05
Catalog No.
Description
Price/Each
AP7358
Dissolved Oxygen and Temperature— Student Laboratory Kit
$50.65
GASES AND THE GAS LAWS—LABORATORY KITS continued on next page.
Dissolved Oxygen and Temperature—Student Laboratory Kit AP7358