Question

Calculate the molar mass of CH4 if 279 ml of the gas measured at 31 deg C and 492 mmHg has a mass of 0.116 g.

Answer 1

Can someone just confirm my answer? I'm getting 16.0 g/mol
Medal and a big fat appreciation given of course

Answer 2

m.mass= RT X mass / PV
R=0.821
T=31+273=304 K
P=492/760=0.647 atm
V=0.279 L
m=0.116 g
Answer will be 16.3 g/mol

Answer 3

ur ans is right

Answer 4

Thank you!