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0.351 g sample of a nonvolatile, yellow crystalline solid dissolves in 15.8 g of benzene, producing a solution that freezes at 4.77 oC. Find the molar mass of the yellow solid. The following may be useful: The freezing point of benzene is 5.51 oC and the freezing point depression constant, kf, is 4.90 oC/m.

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