If the molecular weight of air is 28.9,what is the density of air at atmosphericpressure and a tempe ...

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If the molecular weight of air is 28.9,what is the density of air at atmosphericpressure and a temperature of 281 K?1 atm = 1.013 × 105 N/m2 , the mass ofa proton is 1.67262 × 10?27 kg , Avogadro’snumber is 6.02214 × 1023 mol?1 and k =1.38065 × 10?23 N · m/K.Answer in units of kg/m3.=================================================================If the molecular weight of air is 28.9,what is the density of air at atmosphericpressure and a temperature of 281 K?1 atm =...