Counting Molecules Made Easy. Discover the number of molecules in any pure substance. By Dr. Shawn

The ability to count the number of molecules in a pure sample is a fundamental science skill. In this video Dr. Shawn* explains how to do it, and how to use this simple method to test the purity of certain laboratory chemicals. Intended for STEM teachers, citizen scientists, and students.
*Shawn Carlson holds a Ph.D. in nuclear physics from UC Los Angeles. He is the founder of the Society for Amateur Scientists, LabRats Science Education Program, and Engagement Education. His work has been featured in numerous national publications. He is a former columnist for Scientific American and Make magazines, and a winner of the MacArthur "genius" Prize for his innovative approaches to inspiring people to love learning STEM. See: www.macfound.o... and en.wikipedia.o...