posted by Roth on .
A 27.6 ml volume of chlorine gas is collected over water at 23 C and 750 torr. The mass of the gas is 78.4 mg. The vapor pressure of water is 21 torr.
a) What is the pressure of the chlorine gas?
b) How volume does the chlorine gas occupy?
c) How many moles of chlorine gas are collected?
a). Total P = partial pressure chloring + partial pressure water vapor.
You know total P and you know parital pressure of water vapor. Solve for partial pressure chlorine.
b)I may have missed something but don't they tell you the volume is 27.6 mL?
c)Use PV = nRT
Post your work if you need additional assistance.