An unknown gaseous substance has a density of 1.06 g/L at 31oC and 0.488 atm. The molar mass of the unknown gas is _____.
P*molar mass = density*R*T
P = 0.488
density = 1.06 g/L
R = 0.08206
T = 273.16 + 31 = ?
Substitute and solve for molar mass = ?