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1. (10 points) The composition of air is often given in terms of only the two principal species in the gas mixture, oxygen (21%) and

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1. (10 points) The composition of air is often given in terms of only the two principal species in the gas mixture, oxygen (21%) and nitrogen (79%). Determine the weight fraction, total density, mole fraction, concentration of each species, total concentration, and the mean molecular weight of air at 25C and 1 atm

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