The freezing point of a solution that contains 1.00 g of an unknown compound, dissolved in 10.0 g of benzene is found to be 2.07°C. The freezing point of pure benzene is 5.48 °C. The molal freezing point depression constant of benzene is 5.12°C /m. What is the molecular weight of the unknown compound?

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The freezing point of a solution that
contains 1.00 g of an unknown
compound, dissolved in 10.0 g of
benzene is found to be 2.07°C. The
freezing point of pure benzene is
5.48 °C. The molal freezing point
depression constant of benzene is
5.12°C /m. What is the molecular
weight of the unknown compound?
Transcribed Image Text:The freezing point of a solution that contains 1.00 g of an unknown compound, dissolved in 10.0 g of benzene is found to be 2.07°C. The freezing point of pure benzene is 5.48 °C. The molal freezing point depression constant of benzene is 5.12°C /m. What is the molecular weight of the unknown compound?
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