Page 151 - Demo

“Your Safer Source for Science”
Oxidation and Reduction
149
Oxidation and Reduction—Laboratory Kits,
continued
Iron Corrosion—Guided-Inquiry Kit
By: The Flinn Staff
Rust is expensive! The cost of iron corrosion for
equipment maintenance, repair, and replacement tops $300 billion per year in the United States alone. What kinds of conditions or treatments will reduce or prevent the corrosion of iron? In this guided-inquiry lab, students observe a standard test method for iron corrosion and exam- ine the evidence for the electrochemical model of corrosion. When iron nails are placed in agar containing indicators, different colors develop at the sites of oxidation and reduction, respectively. Students brainstorm what kinds of chemical treatments, surface coatings, and combinations of metals may inhibit or prevent corrosion. They then design a “fair test” experiment, using the standard method, to deter- mine the validity of their hypothesis. By reviewing results with those of other groups, students are able to compare the effectiveness, advan- tages, and disadvantages of various methods of corrosion protection. Includes Instructor’s Notes with complete sample data, comprehen- sive background information, reproducible student handouts, and all chemicals and consumable supplies needed to perform a variety of guided-inquiry lab tests.
Complete for 30 students working in groups of three.
Electrolysis of Water—
Student Laboratory Kit
By: Brother Carmen Ciardullo, Retired
St. Joseph’s Prep Seminary, Princeton, NJ
Electrolysis of water is a popular chemistry demonstration. It is also becoming a popular hands-on lab for students. Microscale electrolysis of water is safe from electric shock since only a 9-volt battery is used. The students will decompose water into 2 parts hydrogen and 1 part oxygen gas by running a small electric current through the water. The hydrogen and oxygen gases collected will be tested for flammability.
All chemicals and specialized equipment are provided.
Complete for 30 students working in pairs. Alligator clips and 9-V batteries are required and available separately.
OXIDATION AND REDUCTION—LABORATORY KITS continued on next page.
Iron Corrosion—Guided-Inquiry Kit AP7186
Catalog No.
Description
Price/Each
AP7186
Iron Corrosion—Guided-Inquiry Kit
$57.75
Catalog No.
Description
Price/Each
AP4359
Electrolysis of Water—Student Laboratory Kit
$56.95
AP1430
Battery, 9-V
5.65
AP5335
Alligator Clips
0.67
Electrolysis of Water—Student Laboratory Kit AP4359
Laboratory Safety Course for Undergraduates
Flinn Scientific’s online labo-
ratory safety course covers
responsible disposal tech-
niques, proper use of PPE,
the use of SDS, chemical and
physical hazard recognition,
chemical hazard categorization,
and procedures for handling
exposure situations. The course
uses an interactive approach to
present the content that combines
videos, graphics, animations, text,
formative and summative assess-
ments, and a digital safety contract.
Student-level and classroom/section-
level data are reported in an online, faculty dashboard. Faculty and lab managers can view the course content prior to adoption decisions.
Purchasing Options
Flinn Scientific offers classroom licensing options for the Laboratory Safety Course for Undergraduates. For one purchase price you will receive a registration key that can be used to create your virtual classroom and easily link all of your students.
*For enrollments greater than 100 please call for pricing information.
l
Catalog No.
Description
l Price/Each
EL9000
Laboratory Safety Course for Undergraduates, Individual license
$ 4.95
EL9001
Laboratory Safety Course for Undergraduates, Classroom Set (1–30)
99.00
EL9002
Laboratory Safety Course for Undergraduates, Classroom Set (31–60)
179.00
EL9003
Laboratory Safety Course for Undergraduates, Classroom Set (61–100)*
l 299.00
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