A Small Gas Cylinder of Helium Used in Chemistry Lecture

A small gas cylinder of helium used in chemistry lecture demonstrations has a volume of 275 mL at a pressure of 1823 kPa at 24.7°C. Use this information to answer
-The number of grams of helium in the cylinder is:

A) 0.202 g
B) 0.810 g
C) 1.24 g
D) 4.96 g
E) none of these