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Product 12886

By: Mark Langella, Mahopac High School, Mahopac, NY

The Intermolecular Forces Chemistry Laboratory Kit is composed of six tests to find the effects of intermolecular forces on compounds. The results guide students to determine the requirements and relative strengths of different forces.

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The forces that act between molecules play a significant role in many aspects of chemistry. The boiling point of liquids and the solubility of solids, even the structure of DNA and proteins, all depend on intermolecular forces. This activity consists of six short tests to investigate the effect of intermolecular forces on the properties of compounds. Students observe and compare the surface tension, capillary action, evaporation, cohesion and solubility of different compounds. The results allow students to determine the requirements and relative strengths of dipole-dipole interactions, hydrogen bonding and London dispersion forces. Includes ethyl alcohol, micro-tip pipets, glass and plastic slides, microspatulas, capillary tubes and Petri dishes along with reproducible student handouts, detailed background information and complete Teacher Notes with sample data and answers to all questions.

Complete for 30 students working in pairs.