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# The vapour pressure of pure benzene at 50$^{\large\circ}$C is 268 torr. How many mol of non-volatile solute per mol of benzene is required to prepare a solution of benzene having a vapour pressure of 167 torr at 50$^{\large\circ}$C?

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## 1 Answer

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0.377
Hence (A) is the correct answer.
answered Jun 10, 2014