Page 152 - Demo

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Flinn Lab Activities and Demonstrations
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Electroplating with Copper—Student Laboratory Kit AP6132
Make Your Own Silver Mirror—A Microscale Super Value Laboratory Kit AP8981
Oxidation and Reduction—Laboratory Kits,
continued
Electroplating with Copper—
Student Laboratory Kit
By: The Flinn Staff
Mimic the everyday process of electroplating with this easy-to-perform lab. Students apply a thin decorative and protective layer of copper onto a metal key, then investigate the mass changes that occur as the two electrodes—the key and the copper electrode—are hooked up to a power supply and ammeter. Students relate the moles of electrons transferred to the moles of copper deposited on the key or lost by the electrode. The charge on the copper ion can then be calculated by applying Faraday’s Law. Pre- and post-lab activities help students relate the non-spontaneous process of electroplating to the Law of Conservation of Matter, oxidation–reduction reactions, anode and cath- ode, and Faraday’s Law. Reproducible student handout and Instructor’s Notes include answer keys, sample data and calculations. Kit includes 15 metal keys, 15 copper electrodes and ample chemicals needed to clean and copper plate the keys (or other metal objects).
Complete for 30 students working in pairs. DC power supply and ammeter are required and available separately.
Survey of Oxidation and Reduction Reactions—General, Organic and Biological Chemistry Experiment See page 11.
Make Your Own Silver Mirror— A Microscale Super Value Laboratory Kit
By: John Mauch
Southridge H.S., Kennewick, WA
Beautiful silver chemistry “mirrors” real-life applications of oxidation and reduction! Students create microscale silvered culture tubes by reacting silver–ammonia complex ions with dextrose. Dextrose is a reducing sugar—it reduces silver ions to silver metal, coating the inside of the glass tube with a durable, reflective silver mirror. The reaction was first used to produce mirrors by the German chemist Justus von Liebig in 1835, and is still used for that purpose today. It’s also the basis of a classic qualitative test in organic chemistry. Combine history with current applications of chemistry and reinforce principles of oxidation, reduction, and organic chemistry, all in one very effective lab activity.
Super Value Kit is complete with materials to plate 75 small culture tubes.
Ornament-Making—
Student Laboratory Kit
By: The Flinn Staff
Holiday fun—combine chemistry and art to design a holiday ornament! Ideal for use on the day before a holiday break, this laboratory kit reinforces redox concepts, while students think they are just having fun! Students will start with a simple piece of galvanized iron and transform it, using redox reactions, into their own work of art. Includes reproducible student instructions, tips, and all materials needed to perform the lab.
Complete for 28 students working individually.
Ornament- Making— Student Laboratory Kit AP5606
Catalog No.
Description
Price/Each
AP6132
Electroplating with Copper—Student Laboratory Kit
$ 60.60
AP9279
Power Supply, Low Voltage DC
170.90
AP9046
DC Ammeter
20.20
Catalog No.
Description
Price/Each
AP8981
Make Your Own Silver Mirror—
A Microscale Super Value Laboratory Kit
$43.35
Catalog No.
Description
Price/Each
AP5606
Ornament-Making—Student Laboratory Kit
$57.25
OXIDATION AND REDUCTION—LABORATORY KITS continued on next page.