Page 150 - Demo

Flinn Lab Activities and Demonstrations
Oxidation and Reduction
148
flinnsci.com
1-800-452-1261
Laboratory Kits .............................................. 148–152 Demonstration Kits ........................................ 152–157
Oxidation and Reduction—Laboratory Kits
Analysis of Hydrogen Peroxide—
Student Laboratory Kit
By: The Flinn Staff
How strong is your antiseptic? Hydrogen peroxide is a common drugstore chemical. As students look in the far reaches of their medi- cine cabinets at home, they are likely to find old bottles of hydrogen peroxide that have long since passed their prime. Since the amount of hydrogen peroxide in solution deteriorates over time, how can the real concentration be determined? Students analyze the percent hydrogen peroxide in a common “drugstore” solution using an oxidation–reduc- tion titration with potassium permanganate. The stoichiometry of the balanced redox equation allows students to calculate the actual hydro- gen peroxide concentration. A great experiment that ties together key concepts of oxidation–reduction and integrates prior knowledge of stoichiometry. Includes all the necessary chemicals, along with reproducible student handouts, detailed background information, and complete Instructor’s Notes with sample data and answers to all questions.
Complete for 30 students working in pairs.
Analysis of Hydrogen Peroxide—General Chemistry Guided-Inquiry Experiment See page 16.
Corrosion of Iron—
Student Laboratory Kit
By: The Flinn Staff
Study the process of corrosion and the activity series of metals with this colorful laboratory activity. Students will first place several iron nails in a bed of agar. Then they will subject each nail to different conditions, such as surrounding the nail with a different metal. By adding indica- tors that show areas of oxidation and reduction, students will visually determine the conditions that either promote or prevent corrosion. Students will explain their observations using the activity series of metals. Includes reproducible student handouts, complete Instructor’s Notes with sample data, all chemical reactions involved and answers to questions, plus all materials needed to perform the lab.
Complete for 30 students working in pairs.
Oxidation-Reduction Titrations— Classic General Chemistry Experiment See page 25.
Electrochemical Cells—
Classic General Chemistry Experiment See page 22.
Analysis of Hydrogen Peroxide— Student Laboratory Kit AP6853
Corrosion of Iron— Student Laboratory Kit AP5608
Catalog No.
Description
Price/Each
AP6853
Analysis of Hydrogen Peroxide— Student Laboratory Kit
$35.90
Catalog No.
Description
Price/Each
AP5608
Corrosion of Iron—Student Laboratory Kit
$44.25
OXIDATION AND REDUCTION—LABORATORY KITS continued on next page.