A 500 Liter Sample of Gas Measured at 27

Multiple Choice

A 5.00 liter sample of gas measured at 27.0°C and 1.25 atm of pressure has a mass of 10.13 g. What is the molecular weight of the gas in u?

A) 39.9
B) 0.898
C) 2.57
D) 2.50 × 10 ^{− 2}