mars' atmosphere is composed of 95.32 % carbon dioxide, 2.7 % nitrogen, 1.6 % argon and 0.13 % oxygen. The atmospheric pressure at the surface is 6.35mbar which is over 100 times less Earth's. Temperature is 20 C. I. Calculate the molecular weight of martian atmosphere II. Calculate the density of martian atmosphere (MWs of Ar = 40 g/mole; CO2 = 44g/mole; O2= 32 g/mole , N2= 28g/mole