Thyroxine, an important hormone that controls the rate of, Ask an Expert

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Thyroxine, an important hormone that controls the rate of metabolism in the body, can be isolated from the thyroid gland. If 0.455 g of thyroxine is dissolved in 10.0 g of benzene, the freezing point of the solution could be measured as 5.144oC. Pure benzene freezes at 5.444oC and has a value for the molal freezing point depression constant of Kf of 5.12oC/m. What is the approximate molar mass of thyroxine?

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Category:- Chemistry
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