How many grams of NBr3 can be made from 525 g Br2  ?  N2   +   3 Br2   →   2 NBr3   +   44.0 kJ              The molar mass of NBr3 is 253.719 g and the molar mass of Br2 is 159.808 g                    ________________  mol Br2                                                                                       (525 g Br2)(–––––––––––––––––––––––––––)  = _____________ mol Br2                    _________________  g Br2                                                                                                                                                             _________________ mol NBr3     _____________________ mol Br2 (–––––––––––––––––––––––––––––––) =  ______________ mol NBr3                                                            _________________ mol Br2

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Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.