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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!.
The molar mass of a substance is its relative formula mass in grams. The unit for molar mass is g/mol. For example: the M r of water is 18, so its molar mass is 18 g/mol.the M r of calcium hydroxide is 74, so its molar mass is 74 g/mol.he molar mass is the relative formula mass of a substance in grams (measured in g/mol). Mass is conserved in chemical reactions, allowing the mass of a reactant or product to be calculated if the masses of the other substances in the reaction are known.