Question

100% s 24-2 Homework Unanswered At 25°C, the vapor pressure of benzene is 13.1 kPa. A sample of 0.20 g of benzene is injected into an evacuated flask with a volume of 250 mL. What mass of liquid benzene remains after equilibrium is established. You may ignore the volume taken up by the liquid benzene in the flask. Numeric Answer: 0.5 You are incorrect 0.5 Answered - Sorry, that is not correct Retry Screenshot

Answer 1

Now (Sol) Criven o pour = 1311 kPa Uflask = 250 me Temperature = 25°c = 298 K mass = 0.20g PU=ART at equilibrium So 1311 103 x 250810 - nx 8.3145 X 298 n = 1.311779X163 mol Moles of benzene is gaseous state = 1.3 11 779 x lo-3 = 1:31179x -3x 78 Mass - Moloon Mars Benzend so Mass of benzene in gaseous state = 0.10319 So mass of benzene remain after equilibrium = Initial mass - Benzene in gaseous state = 0.20 - 0.1031 0.9699) Amy