A given mass of oxygen occupies 500 ml when the pressure is 800 mm of Hg. What volume will the gas occupy at 200 mm Hg, provided the temperature remains constant? A mL
ok we can use boyle’s law (stating that P is proportional to V) to make the equation (P1V1) =(P2V2). once we’ve done this, we can plug in the numbers: (800•500) = (200•V2) and then we get that V2= 2000 ml