Density of a gas was found to be 5.5 g/L at 2 bar pressure and at 250C. Calculate its molar mass. (R=0.083 L bar/K/mol) Share with your friends Share 0 Vartika Jain answered this Dear Student, pV=nRTor, pV=mMRTor, p=mMVRTor, p=ρMRTand, ρ=mVTherefore, M=ρpRTp= 2 bar T=25°C= 25+273=298 KSo, M=5.52×0.083×298=67.33 g 4 View Full Answer