The density of a gas at 27o C and 1 bar pressure is 2.56 g L-1. Calculate the molar mass. [R = 0.083 bar dm3 K-1mol-1] Share with your friends Share 1 Geetha answered this As per ideal gas equationpV= nRTpV=WRTMp=WVRTMp=dRTMM=d RTpM= molar mass = ?d= density = 2.56 g/LR= Gas constant = 0.083 bar dm3K/molT= Temperature = 300 Kp= pressure = 1 bar M = 2.56 ×0.083×3001 = 63.75 g 4 View Full Answer