Question

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​

Answer 1

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

hope this helps!! :)