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Flinn Lab Activities and Demonstrations
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Stoichiometry and Moles—Laboratory Kits,
continued
Empirical Formula of Copper
Carbonate—Student Laboratory Kit
By: The Flinn Staff
See the true colors of copper carbonate. The empirical formula of copper carbonate is not obvious but its parts can be investigated and related to the composition of the whole. Students measure the amount of gas generated and apply colorimetric analysis to determine the identity of an unknown copper carbonate. This hands-on experiment will help students learn the concepts of empirical formulas, standard dilution, percent composition, and colorimetric comparison. Includes reproducible handouts, detailed background information, complete Instructor’s Notes with sample data and answers to questions, and all chemicals needed to perform the lab.
Complete for 30 students working in pairs.
Limiting Reagent—Student Laboratory Kit
By: Doug De La Matter, Retired Chemistry Teacher Madawaska Valley D.H.S., Barry’s Bay, ON
Eight buns, eight cheese slices, but only seven hamburger patties—how many cheeseburgers can you make? This lab introduces the concept needed to answer this simple question—limiting reagents in chemi- cal reactions. Students prepare a very visual, dense, and fast-settling precipitate from varying ratios of solutions of barium and iodate ions. They measure the height of the insoluble barium iodate that forms in each tube to determine which reagent is in excess and which is the limiting reagent! Simple chemical tests confirm the presence of the ion in excess. Chemistry students can perform this simply as a qualitative lab, or they can use the balanced chemical equation and mole ratio stoi- chiometry to quantitatively calculate the amount of each reactant used up and the excess number of moles. All necessary chemicals, 30 10-mL syringes, 75 stirrers, 75 reusable pipets and 75 test tubes are provided. Kit contains sodium sulfate for the safe disposal of barium compounds. Instructor’s Notes and reproducible student handouts included.
Complete for 30 students working in pairs.
Make-A-Mole—Hands-On Student
Activity Kit
By: The Flinn Staff
Let’s make a mole! Celebrate Mole Day and encourage creativity in your chemistry class as students sew a mole—using the mole pattern and easy-to-follow Make-A-Mole instructions. Students have fun as they create and personalize their own stuffed mole—Mickey Mole, Pillsbury Mole Boy, Molechemist, Mole-a Lisa—the possibilities of mole designs are limitless. Includes mole pattern master; instructions; mole design ideas; black and brown fabric for a demo mole; and eyes, noses, tails and fiberfill stuffing for 30 student moles.
Complete for a class of 30 students working individually. Fabric for student moles is required, but not included.
Empirical Formula of Copper Carbonate—Student Laboratory Kit AP7430
Catalog No.
Description
Price/Each
AP7430
Empirical Formula of Copper Carbonate— Student Laboratory Kit
$28.60
Limiting Reagent—Student Laboratory Kit AP6188
Catalog No.
Description
Price/Each
AP6188
Limiting Reagent—Student Laboratory Kit
$66.85
Sample student- made moles shown.
Catalog No.
Description
Price/Each
AP6159
Make-A-Mole—Hands-On Student Activity Kit
$27.70
Make-A-Mole—Hands-On Student Activity Kit AP6159