by TMW
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This program covers the very important topic of density as it relates to chemistry. We begin by discussing mass and volume and conclude by showing that the ratio of these quantities (mass per unit volume) is a very useful way to compare substances and is known as density. 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.