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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!.
Nitrogen monoxide is NO So the molecular weight is 14 (Nitrogen) + 16 (Oxygen) = 30 moles of NO = wt/mw = 22.5 grams / 30 = 0.75 moles We know Avogadro's constant (or Avogadro's number) = 6.02 x 10 ^23 Therefore: number of molecules = Av const x number of moles = 6.02 x 10^23 x 0.75 = 4.515 x 10^23 So the answer is (C).itrogen monoxide is NO So the molecular weight is 14 (Nitrogen) + 16 (Oxygen) = 30 moles of NO = wt/mw = 22.5 grams / 30 = 0.75 moles We know Avogadro's constant (or Avogadro's number) = 6.02 x 10 ^23 Therefore: number of molecules = Av const x number of moles = 6.02 x 10^23 x 0.75 = 4.515 x 10^23 So the answer is (C).