posted by Gurjot .
in a lab experiment, 133mL of gas was collected over water at 24 degrees Celsius and 742 torr. Calculate the volume that the dry gas would occupy at STP.
(P1V1/T1) = (P2V2/T2)
P1 = 742-vapor pressure H2O @ 24C. You find vp H2O in tables. I'm sure your text has one.