Question

5. The boiling point of pure acetone is said to be 55.95°C. A solution was made by dissolving 3.75g of a pure hydrocarbon in 95g of acetone and upon checking the boiling point of the solution is was found out to be at 56.5°C. If KB of acetone is 1.71 °C / molar, what is the approximate MW of the hydrocarbon?


6. A solution of 6.2g of C2H6O2 in water has a freezing point of -0 .186°C. How many grams of H2O are in the solution?

Answer 1

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