Does simple stoichiometric calculations instantaneously upon input of a balanced chemical equation and at least one defined reactant or product mass in grams or amount of moles. It also determines if and/or which reactants are limiting and excess upon input of at least two defined reactant masses in grams or amount of moles.
I made this because I'm an (most likely) autistic teenager who feels the obligation to do nothing but do crazy genius things for the hell of it.