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Flinn Lab Activities and Demonstrations
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Classic Experiments for General Chemistry,
continued
Kinetics of Redox Reaction—Laboratory Kit
By: The Flinn Staff
In this technology-based lab, students study the rate of the oxidation- reduction reaction of FD&C Red Dye #3 with sodium hypochlorite. Students use a spectrophotometer to quantitatively measure the rate of disappearance of the colored reagent. First, students create a calibration curve for the dye. Then they find the order of reaction for each of the reactants by varying the concentration of each reactant individually. Finally, a graphical analysis of the relationship of concentration versus time is used to calculate the rate constant.
This lab challenges understanding of the relationships of concentra- tion, reaction rate and rate law. Includes optional FD&C Blue Dye #1 for better absorbance with some colorimeters. A spectrophotometer or colorimeter is required.
Complete for 24 students working in pairs. A spectrophotometer or colorimeter is required and available separately.
Liquid Chromatography—Laboratory Kit
By: The Flinn Staff
Separate different colored dyes found in grape Kool-Aid® using chro- matography methods that mimic popular methods used in research and industry. Miniature liquid chromatography columns called Sep-Pak® C18 cartridges are used to separate the dyes and polar components of Kool-Aid. Students will understand the chromatographic process and relate the polarity of molecules to the separation process.
Complete for 24 students working in pairs.
Determination of the Molar Masses of Gases
and Volatile Liquids—Laboratory Kit
By: The Flinn Staff
The molar masses of specific gases are found by comparing masses of equal volumes of gases at the same temperature and pressure. Oxygen gas is selected as a standard and molar masses are assigned from it. In addition, the molar masses of specific volatile liquids are determined in a microscale experiment by using the Ideal Gas Law. Students gain experience in handling gases, using an analytical balance, and in microscale chemistry procedures.
Complete for 24 students working in pairs.
Determining the Molar Volume of a Gas—
Laboratory Kit
By: The Flinn Staff
In this experiment, students determine the volume of one mole of hydrogen gas at standard temperature and pressure (STP). Hydrogen is generated by the reaction of a known mass of magnesium with an excess of hydrochloric acid in an inverted gas measuring tube filled with water. The volume of hydrogen collected by water displacement is 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.
Kinetics of Redox Reaction—Laboratory Kit AP7954
Catalog No.
Description
Price/Each
AP7954
Kinetics of Redox Reaction—Laboratory Kit
$53.00
Liquid Chromatography—Laboratory Kit AP7955
Catalog No.
Description
Price/Each
AP7955
Liquid Chromatography—Laboratory Kit
$101.20
Determination of the Molar Masses of Gases and Volatile Liquids—Laboratory Kit AP7985
Catalog No.
Description
Price/Each
AP7985
Determination of the Molar Masses of Gases and Volatile Liquids—Laboratory Kit
$111.40
Catalog No.
Description
Price/Each
AP7957
Determining the Molar Volume of a Gas—Laboratory Kit
$30.55
CLASSIC EXPERIMENTS FOR GENERAL CHEMISTRY continued on next page.
Determining the Molar Volume of a Gas—Laboratory Kit AP7957