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3. The composition of a volume of 1 liter of dry air is given in the table below. Calculate (6 Points) Component Nitrogen Oxygen Carbon dioxide Hydrogen Monatomic gases(Ar, Rn, He, Kr.Ne) Total Vol (ml) Mass (mg) Molecular weight (g/gmol) 780.3 893.4 209.9 274.5 0.592 28.015 32.00 44.003 2.016 39.94 0.3 0. 5.8 x 106 9.4 15.39 1000 ,183.882 a. the mass fraction of Nitrogen in Air b. the molecular weight of air in (g/gmole) c. the density of hydrogen in (kg/m3) d. number of moles of nitrogen in air in (gmole) e. the mole fraction of oxygen in air f. the density of air in (lb/ft3)
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4 mass Fracon of N in air mass o Nioe $33.4 Total mass nnass Freehon= o.FS46 |ofN2 .01539 39.94 Total mass GF air 。工83992 g28.015 no l 9 mele fractien total moles of ai (0.244532 mole -fraction of 02 0.20gg s amass = 193: 882 mg 7m3 r 3 1.193882 Xpop

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