The vapour pressure of benzene at a certain temp. is 640 mm Hg. A non- – InterviewSolution

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1.	The vapour pressure of benzene at a certain temp. is 640 mm Hg. A non-volatile-non-electrolyte and weighing 2.175 g is added to 39.0 g of benzene. The vapour pressure of the solution is 600 mm Hg. What is the molecular weight of the solid substance ?
Answer» 6.96 65.3 63.8 none of these Answer :C

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