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Solutions and Solubility
113
Solutions and Solubility—Laboratory Kits,
continued
Percent Copper in Brass—General Chemistry Guided-Inquiry Experiment
See page 18.
It’s in Their Nature—
Student Laboratory Kit
By: The Flinn Staff
“Oil and water do not mix.” This old saying is often used to explain why relationships between opposites are difficult or almost impossible. In this experiment, students trace this saying back to its source—the nature of oil and water, solutes and solvents, and the interactions between them. By investigating the solubility patterns of ionic, polar, and nonpolar compounds in a variety of solvents, students learn to clas- sify compounds and begin to understand the types of attractive forces that exist between molecules. Includes reproducible student handouts, detailed background information and Notes.
Complete for 30 students working in pairs. Perform this experiment in a fume hood or well-ventilated lab.
Gravimetric Analysis of Calcium and Hard Water— General Chemistry Guided-Inquiry Experiment
See page 17.
Marbling Paper—Student Laboratory Kit
By: The Flinn Staff
Break out your inner Picasso! In this “Marbling Paper”
lab activity, students will apply the concepts of intermolecular forces, surface tension, solubility, and viscosity to an age-old craft. Utilizing painters’ inks diluted with natural, nontoxic paint thinner, students trans- fer unique ink patterns from the surface of water to paper and explore how variables affect the results. Effective assessment questions allow students to probe more deeply the simple adage that oil and water do not mix. An excellent cross-curriculum activity that brings science and art concepts to life—show students that chemistry is a creative science!
Complete for eight groups of students.
See free video at flinnsci.com.
Precipitation Reactions and
Solubility Rules—Super Value Kit
By: The Flinn Staff
All nitrates are soluble! Most hydroxides are insoluble! Rather than memo- rizing solubility rules like this, students investigate precipitation reactions and then develop their own general rules of solubility—exactly what the National Science Standards are calling for! Students perform 42 chemical reactions by combining sets of salt solutions. From their observations, students generate lists of soluble and insoluble substances. By analyzing patterns and making some generalizations, students develop solubility rules. Detailed Notes and reproducible student handouts include easy-to-follow lab instructions, data tables, helpful tips, and sample data.
Super Value Kit is complete for 5 classes of 30 students working in pairs. Fifteen reusable 48-well reaction plates are recommended and available separately.
Separating a Synthetic Pain Relief Mixture— General Chemistry Guided-Inquiry Experiment See page 20.
It’s in Their Nature—Student Laboratory Kit AP6637
Catalog No.
Description
Price/Each
AP6637
It’s in Their Nature—Student Laboratory Kit
$69.55
Marbling Paper—Student Laboratory Kit AP7354
Catalog No.
Description
Price/Each
AP7354
Marbling Paper—Student Laboratory Kit
$45.95
Catalog No.
Description
Price/Each
AP4862
Precipitation Reactions and Solubility Rules— Super Value Kit
$99.25
AP8822
Reaction Plate, 48-well
6.05
SOLUTIONS AND SOLUBILITY—LABORATORY KITS continued on next page.
Precipitation Reactions and Solubility Rules—Super Value Kit AP4862