Posted by Kate on Saturday, November 20, 2010 at 3:16pm.
A quantity N2 of occupies a volume of 1.4L at 290K and 1.5atm . The gas expands to a volume of 3.1 L as the result of a change in both temperature and pressure.
I have the find the density of the gas at these new conditions?

Chemistry  bobpursley, Saturday, November 20, 2010 at 3:20pm
PV=nRT solve for n, convert that to grams.
density=mass/volume