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A solution contains 3.75 g of a nonvolatile pure hydrocarbon in 95 g acetone. The boiling points of pure acetone and the solution are 55.95°C and 56.50°C, respectively. The molal boiling-point constant of acetone is 1.71°C · kg/mol. What is the molar mass of the hydrocarbon?

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26 Nov 2020
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