This program is designed to help students practice gram to mole and mole to gram conversions with chemical compounds to help develop their skills for learning stoichiometry. The demo version of this program focuses solely on gram to mole conversions and has 5 pre-programmed masses and chemical formulas. Questions used in this program are simple and again, the entire purpose is to help develop student skills with respect to gram to mole and mole to gram conversions. This program requires an operating system that can run an executable (exe) file and has been tested on Windows operating systems. Again, the product you are currently viewing is the demo and solely focuses on gram to mole conversions. Please look at and/or purchase the full version for mole to gram practice along with a significantly expanded number of mass values and chemical compounds.