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Flinn Lab Activities and Demonstrations
1-800-452-1261
flinnsci.com
Kinetics and Reaction Rate— Demonstration Kits, continued
Sudsy Kinetics—
Chemical Demonstration Kit By: Walter Rohr, Retired
Eastchester High School, Eastchester, NY
Teach kinetics in a fun and sudsy way! This three-part demonstration provides an interesting twist on the traditional “Old Foamey” demon- stration. Show your students the effect of concentration on reaction rate, observe a reaction intermediate and test for products, and compare the rate of a reaction with its stoichiometry. Safe and easy—this is a great kit for all levels of chemistry students! Demonstration Notes included. Concepts: Kinetics, catalysts, reaction intermediates.
Time Required: 25 minutes
Chemicals Provided: Sodium iodide solution; hydrogen peroxide 30%, 10% and 3% solutions; and detergent.
Note: A large fiberglass demonstration tray (AP5429) is recommended.
See free video at flinnsci.com.
The Cinnamon Clock Reaction— Chemical Demonstration Kit
By: Jim and Julie Ealy, Retired
The Peddie School, Hightstown, NJ
A clock reaction is conducted using cinnamaldehyde, the organic mole- cule extracted from cinnamon sticks. Color changes are fascinating. Rates of reaction can also be discussed. Entire demonstration smells of cinnamon. Demonstration Notes included.
Concepts: Kinetics, organic chemistry.
Time Required: 20 minutes
Chemicals Provided: Cinnamaldehyde solution, acetone solution and sodium hydroxide solution.
The Pink Catalyst— Chemical Demonstration Kit By: Jim and Julie Ealy, Retired
The Peddie School, Hightstown, NJ
Learn how a catalyst works by observing the color changes of pink cobalt ions. You’ll see the catalyst as it gets swept up in the oxidation of tartrate by hydrogen peroxide, changes into a green intermediate, and then reappears again at the end. A super demonstration to display rates of reaction, kinet- ics, catalysts, and reaction mechanism. Demonstration Notes included. Concepts: Kinetics, catalysts.
Time Required: 20 minutes
Chemicals Provided: Sodium potassium tartrate solution, hydrogen peroxide solution 6%, cobalt chloride.
The ROY G BIV Clock Reaction—
Chemical Demonstration Kit
By: Steve Spangler, Regis University, Denver, CO
The visible spectrum has been displayed many ways,
but never quite as spectacularly as this! Take seven different dry chemi- cal mixtures and add each to a separate beaker. Pour a clear liquid into each beaker. In less than a minute, the large pH change at the end of this clock reaction causes a blooming of the seven rainbow colors. A wonderful introduction to acid–base buffers. Demonstration Notes included.
Concepts: Clock reactions, pH indicators, buffers.
Time Required: 15 minutes
Chemicals Provided: Formaldehyde solution, isopropanol solution and seven dry indicator mixtures.
Sudsy Kinetics—Chemical Demonstration Kit AP4866
The Cinnamon Clock Reaction—Chemical Demonstration Kit AP2086
The Pink Catalyst—Chemical Demonstration Kit AP2084
Catalog No.
Description
Price/Each
AP4866
Sudsy Kinetics—Chemical Demonstration Kit
$68.60
AP5429
Demonstration Tray, Large
89.50
Catalog No.
Description
Price/Each
AP2086
The Cinnamon Clock Reaction— Chemical Demonstration Kit
$38.00
Catalog No.
Description
Price/Each
AP2084
The Pink Catalyst—Chemical Demonstration Kit
$28.40
The ROY G BIV Clock Reaction—Chemical Demonstration Kit AP6280
Catalog No.
Description
Price/Each
AP6280
The ROY G BIV Clock Reaction— Chemical Demonstration Kit
$44.20
KINETICS AND REACTION RATE—DEMONSTRATION KITS continued on next page.