How many grams of N2 are needed to completely (stoichiometrically) react with  222 g of Br2 ?  N2   +   3 Br2   →   2 NBr3   +   44.0 kJ              The molar mass of Br2 is _____________ g and the molar mass of N2 is  ___________ g                                ____________ mol Br2                                                              (2.22 x 102 g Br2)(––––––––––––––––––––––––––––––)  =  __________ mol Br2                               _______________ g

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Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".