Chapter Profile
The content in this chapter should be relevant to about 10% of all questions about Organic
Chemistry on the MCAT.
This chapter covers material from the following AAMC content category:
4D: How light and sound interact with matter
Introduction
If we are given an unknown compound, one of the most efficient ways to identify it and determine
its properties is by using spectroscopy. Spectroscopy measures the energy differences between the
possible states of a molecular system by determining the frequencies of electromagnetic radiation
absorbed by the molecules. These possible states are quantized energy levels associated with
different types of molecular motion, such as molecular rotation, vibration of bonds, electron