Mole conversion worksheet with a flowchart showing relationships between atoms/molecules, moles, and grams, including practice problems.

A worksheet titled "Moles, Molecules, and Grams Worksheet and Key" featuring a flowchart that illustrates the conversion between number of atoms or molecules, mass in grams, and number of moles, with a red prohibition symbol over the direct conversion from atoms/molecules to mass. The flowchart includes steps using Avogadro's number (6.022 x 10^23) and molar mass (grams/mole). Below the diagram, there are four practice problems involving calculations of moles, grams, and atoms for various chemical compounds and elements.