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Molar mass nitrogen ( N2 ) = 28.02 g/mol. 1 mol N2 -------> 28.02 g. 4.60 mol ---------> x g. x = 4.60 * 28.02. x = 129 g of N2. hope this helps!.
Molar mass is the weight of one mole (or 6.02 x 1023 molecules) of any chemical compounds. Molar masses of common chemical compounds that you might find in the chemistry laboratory can range between 18 grams/mole for compounds like water to hundreds of grams per mole for more complex chemical compounds.eport Abuse. The molar mass is simply the atomic mass expressed in grams (if your using gram moles, which I'm pretty sure you are). For example, take water, H2O: The atomic mass of water is 2 times the mass of H, plus 1 times the mass of O = 2*(1) + 1*(16) = 18 amu. So one mole of water is 18 grams.