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Chemistry, 26.11.2020 20:30 moonk7733

A solution made by dissolving 150.0 g of an unknown compound in 425.0 mL of benzene to make a solution which has a freezing point 18.6 °C lower than that of pure benzene. Kf for benzene is 5.12 °C/m and the density of benzene is 0.877 g/mL. Required:
a. What was the molality of the solution?
b. How many moles of the unknown compound were dissolved in the solution?
c. What is the molar mass of the unknown compound?

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