CHEM101: General Chemistry I

Watch these two videos, which provide step-by-step tutorials on how to convert between the number of atoms and moles using Avogadro's Number as a conversion factor, and how to convert between mass and moles using molar mass as a conversion factor. After you watch one example, you may want to pause the video and try an example on your own. We will be using these types of calculations later in this course.