This program covers the important topic of units and unit conversions in chemistry. We begin by discussing the primary units that will be used throughout the course. Next, we illustrate a very powerful technique to convert from one unit to another that the student will use in virtually every chemistry problem. The entire lesson is taught by working example problems beginning with the easier ones and gradually progressing to the harder problems. Emphasis is placed on giving students confidence in their skills by gradual repetition so that the skills learned in this section are committed to long term memory.