This video and online calculator show how to calculate the molecular weight of a substance from the atomic weights given on the periodic table. Use the molecular weight to convert between the macroscopic scale (grams of...

The 2005 Nobel Prize for Chemistry celebrated molecules that are of great value to researchers, to the broader society, and to chemical educators. Some of those molecules are featured here.

On this site, instructions and software are provided to allow students to build an inexpensive spectrophotometer, using digital cameras or cell phone cameras as array detectors. Supplementary materials include...

The North Carolina Community College System BioNetwork's interactive eLearning tools (IETs) are reusable chunks of training that can be deployed in a variety of courses or training programs. IETs are designed to enhance,...

This Quick Time movie describes the operation of a dual beam spectrometer using an optical wedge to improve the accuracy of the absorbance measurement. The movie includes narration and graphs which explain the...