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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!.
DEFINITION: Molar Mass is the mass in grams of 1 mole of a substance and is given the unit of g mol-1 molar gas volume (gas volume per mole, units dm3 molâ1) . This is the volume of 1 mole of a gas at a given temperature and pressure. All gases have this same volume. At room pressure (1at m) and room temperature 25oC the molar gas volume is 24 dm3 molâ1