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Your Safer Source for Science
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Item #: PF2027 

Price: $45.00

In this lab experience, students carry out an investigation to identify the covalent compounds from a group of eight compounds, based on the compounds’ physical properties. Students come to understand that a material’s physical properties, such as melting point, are linked to the material’s structure and bonding. Moreover, the interparticle forces in covalent compounds tend to be relatively weak, and so covalent compounds tend to melt at relatively low temperatures.

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Product Details

Safety: Before conducting the lab, review with the class the safety precautions on the student page. Remind students to take care when conducting melting point tests as these require use of an open flame. Good ventilation is required since burning samples can generate smoke. Students should wear chemical splash goggles throughout the experiment.


Materials Included in Kit

Consumable:
Calcium carbonate, 25 g
Dextrose, 20 g
Dodecyl alcohol, 20 g
Iron(III) oxide, 30 g
Potassium chloride, 25 g
Salicylic acid, 20 g
Sodium chloride, 25 g
Sucrose, 40 g

Non-Consumable:
Test tube, glass, 45


Additional Materials Required
Bunsen Burner, Adjustable, Natural Gas, 10
Butane Safety Lighter, 10
Evaporating Dishes, Disposable, Aluminum, 20-mL, Pkg. of 100, 1
Flinn Conductivity Meter, 10
Flinn Scientific Electronic Balance, 210 x 0.01-g, 10
Periodic Table, Notebook Size, 10
Ring Support, with Rod Clamp, 2", 10
Stirring Rods, Glass, 10
Support Stand, Economy Choice, 10
Test Tube Clamp with Finger Grips, 10
Test Tube Rack, Economy Choice, 10