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Your Safer Source for Science
Address P.O. Box 219 Batavia, IL 60510
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Item #: PF2172 

Price: $80.00

In this lab experience, students carry out an investigation to determine the mass percent of bicarbonate in solid mixtures of metal bicarbonate and metal carbonate, via thermal decomposition of the solid samples. They determine the Atom Economy of the reactions involved, and based on these values, they decide and explain which bicarbonate would be the greener choice as a food additive that generates carbon dioxide gas when exposed to heat.

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Product Details

Safety: Before conducting the lab, review the safety precautions on the student page with the class.Then discuss any safety precautions that are specific to your science laboratory or classroom. Good ventilation is required since burning carbonate and bicarbonate salts will generate fumes of carbon dioxide and water vapor.

Materials Included in Kit

Potassium bicarbonate, 50 g
Potassium carbonate, 50 g
Sodium bicarbonate, 50 g
Sodium carbonate, 50 g
Weighing dishes, 40

Additional Materials Required
Bunsen Burner, Adjustable, Natural Gas, 10
Bottles, Washing, Polyethylene, 250-mL, 10
Crucibles, porcelain, high form, 10 mL, 20
Flint lighter, 10
Pipe stem triangles, 10
Tongs, 10
Wire gauze, 10
Flinn Scientific Electronic Balance, 120 x 0.001-g, 10
Spatulas, Disposable, Box of 300, 1
Support Stand, 6" x 9", 10
Ring Support, with Rod Clamp, 4", 10