Posted by kaitlin watson on .
A gas has a pressure of 2.96 atm when its
volume is 3.93 L. What will the pressure
be when the volume is changed to 1.09 L,
assuming constant temperature? Express the
ﬁnal pressure in torr.
Answer in units of torr

chemistry 
Devron,
P1=2.96
P2=?
V1=3.93L
V2=1.09L
**** 1 atm = 760 torr
Use P1V1/T1=P2V2/T2 and solve for P2. Assuming T1=T2, you can ignore the T's and rewrite the equation as P1V1=P2V2.
Rearranging the equation results in (P1V1)/P2=V2
Plug in your values and solve for V2
Afterwards multiply by the conversion provided to get your answer in torr.