Page 11 - Demo

“Your Safer Source for Science”
General, Organic and Biological Chemistry
9
General, Organic and Biological Chemistry Kits,
continued
Molar Volume of Hydrogen—
Laboratory Kit
By: The Flinn Staff
Avogadro, Boyle, Charles and Dalton—these scientists and their gas laws are well known. They defined the relationships among four macroscopic gas properties: pressure, volume, temperature and the number of moles of gas. How much gas must be generated to fill a hot air balloon or an airbag? The amount of gas needed to fill any container can be calculated if we know the molar volume of the gas. Answering this general question requires knowledge of all of the gas laws! In this experiment students determine the volume of one mole of hydrogen gas at standard temperature and pressure (STP). The volume of hydrogen collected by water displacement will be measured and corrected for differences in temperature and pressure in order to calculate the molar volume of hydrogen at STP.
Complete for 24 students working in pairs.
Discovering Instant Cold Packs—
Laboratory Kit
By: The Flinn Staff
Instant cold packs are familiar first-aid devices used to treat injuries when ice is unavailable. Most commercial cold packs consist of a plastic package containing a white solid and an inner pouch of water. Firmly squeezing the pack causes the inner pouch to break. The solid then dissolves in the water producing a change in temperature.
In this guided-inquiry experiment, students analyze a cold pack, design a calorimetry experiment, and determine the heat of solution for a “cold-pack solid” dissolving in water.
Complete for 24 students working in pairs.
Analyzing Calcium in Milk—
Laboratory Kit
By: The Flinn Staff
Healthy body, good teeth, strong bones—the benefits of calcium in good nutrition are well known. Milk and dairy products are widely promoted as an important source of calcium in the diet. Explore the chemistry behind the nutrition with this experiment that measures the amount of calcium in milk. Students analyze the calcium content in skim milk by microscale titration with EDTA. An excellent activity to “bone-up” on calcium properties and titration skills!
Complete for 24 students working in pairs.
Molar Volume of Hydrogen—Laboratory Kit AP8023
Catalog No.
Description
Price/Each
AP8023
Molar Volume of Hydrogen—Laboratory Kit
$30.10
Discovering Instant Cold Packs—Laboratory Kit AP8024
General, Organic and Biological Chemistry—36 Kit Bundle
Save by ordering the complete General, Organic and Biological Chemistry 36-kit bundle! Comprehensive, cost- saving bundle includes all 36 kits on pages 4–14 and the
372-page GOB lab manual.
Catalog No.
Description
Price/Each
AP8044
General, Organic and Biological Chemistry—36-Kit Bundle
$2410.00
Catalog No.
Description
Price/Each
AP8024
Discovering Instant Cold Packs—Laboratory Kit
$38.50
Catalog No.
Description
Price/Each
AP8025
Analyzing Calcium in Milk—Laboratory Kit
$77.75
GENERAL, ORGANIC AND BIOLOGICAL CHEMISTRY continued on next page.
Analyzing Calcium in Milk—Laboratory Kit AP8025