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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!.
To calculate the molar mass of a compound, find the number of grams of each element contained in one mole of the compound. Then add the masses of the elements in the compound. Describe how to convert between the mass and the number of moles of a substance. The molar mass of an element or compound is the conversion factor for converting between the mass and the number of moles of a substance. What is the volume of one mole of any gas at STP? One mole of any gas occupies a volume of 22.4 L at STP. One mole of any substance contains Avogadro's number of particles, so 22.4 L of any gas at STP contains 6.02 x10^23 represenative particles of that gas.