Find the density (in g/cm�) of nitrogen gas @ STP?

at STP condition 1 mole of gas umed as ideal occupies 22.414 l of volume; if the gas is nitrogen, 1 mole correspond to 28 g--> density is 28 g/ 22.414 l=1.25 g/l. 1 l=1dm^3=1000 cm^3, therefore the density in g/cm^3 is 1/1000 of the density in g/l --> 1.15/1000= 0.00125