Density ca n be calculated as follows:
d=P(FW)/RT
d = density , FW formula weight which is 17 .031 g/ mol
R = gas constant 0 .082 6 L atm K−1 mol−1
T = temperature, 25 C or 298 K
P = pressure 800 torr or 1.053 atm
Therefore
d=P(FW)/RT
= 1.053 * 17.031 /0.08206 *298
= 0.733 g/ L