Gas cylinder A has a volume of 48.2 L and contains N2 (g) at 8.35 atm and 25.0 C. Gas cylinder B, of unknown volume, contains He (g) at 9.50 atm and 25.0C. When the two cylinders are connected and the gases mixed, the pressure in each cylinder becomes 8.71 atm. What is the volume of cylinder B?