Modern vacuum pumps make it easy to attain pressures of the order of 10−1310−13 atm in the laboratory. Consider a volume of air and treat the air as an ideal gas.
a). At a pressure of 9.00×10−149.00×10−14 atm and an ordinary temperature of 300.0 K, how many molecules are present in a volume of 1.00cm31.00cm3?
b). How many molecules would be present at the same temperature but at 1.00 atm instead?