The freezing point of benzene is 5.53C. Suppose that 10.0 g of an organic compound used as

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The freezing point of benzene is 5.53°C. Suppose that 10.0 g of an organic compound used as a component of mothballs is dissolved in 80.0 g of benzene. The freezing point of the solution is 1.20°C.

(a) What is an approximate molar mass of the organic compound?

(b) An elemental analysis of that substance indicated that the empirical formula is C3H2Cl. What is its molecular formula?

(c) Using the atomic molar masses from the periodic table, calculate a more accurate molar mass of the compound.

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Chemical Principles The Quest For Insight

ISBN: 9781464183959

7th Edition

Authors: Peter Atkins, Loretta Jones, Leroy Laverman

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