A 0.25 g sample of an unknown solid is dissolved in 8.85 g of cyclohexane. The change in the freezing point of the cyclohexane is 2.8 C. The Kf for cyclohexane is 20.0 (C*Kg)/mol. What is the molar mass of the solute?

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A 0.25 g sample of an unknown solid is dissolved in 8.85 g of cyclohexane. The change in the
freezing point of the cyclohexane is 2.8 C. The Kf for cyclohexane is 20.0 (C*Kg)/mol. What is
the molar mass of the solute?
A. 55.2 g/mol
O B. 170. g/mol
O C. 202 g/mol
O D. 20.2 g/mol
Transcribed Image Text:A 0.25 g sample of an unknown solid is dissolved in 8.85 g of cyclohexane. The change in the freezing point of the cyclohexane is 2.8 C. The Kf for cyclohexane is 20.0 (C*Kg)/mol. What is the molar mass of the solute? A. 55.2 g/mol O B. 170. g/mol O C. 202 g/mol O D. 20.2 g/mol
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