Modern Chemistry, Lesson 146: Measuring the Size of a Molecule - an Experiment

Duration: 30 min

Creator: Encyclopaedia Britannica Educational Corporation

Description: Demonstrates one of the classical experiments of surface chemistry. Consists of spreading out on the surface of clean water a thin film of the fatty acid, stearic acid. Explains that one end of the stearic acid molecule is thought to stick into the water, the rest of the molecule sticking up into the air.

Metadata Source:Catalog of Classroom Teaching Films for Georgia Schools, No. 10 (Georgia Department of Education)