Cylinder A and cylinder B are sealed, rigid cylinders with movable pistons. Each cylinder contains 500 milliliters of a gas sample at 101.3 kPa and 298 K. Cylinder A contains H.(g) and cylinder B contains N (g). The diagrams below represent these two cylinders. Cylinder A Cylinder B Movable piston T H2(g) N2(g) 58 Compare the mass of the gas in cylinder A to the mass of the gas in cylinder B.