This one page problem set gets students practicing mole calculations in preparation for stoichiometry and empirical and molecular formula calculations. It includes finding molar mass, conversions involving Avogadro's number, conversions with molar mass, and percent composition calculations. This is intended for a first year chemistry course, but could be included in a review for AP.
Because I start the year with moles, I use this as a mole review after percent composition calculations before we