An unknown compound contains only carbon, hydrogen, and oxygen. Combustion analysis of the compound gives mass percents of 31.57% C, and 5.30% H. The remaining mass percent is oxygen. A solution of 10.56 g of the compound in 25.0 g of water has a freezing point of -5.20oC. Determine the empirical formula, the molar mass, and the molecular formula of the compound. Assume that the compound is a nonelectrolyte. (Water has Kf = 1.86oC/m)

Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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An unknown compound contains only carbon, hydrogen, and oxygen. Combustion analysis of the
compound gives mass percents of 31.57% C, and 5.30% H. The remaining mass percent is oxygen. A
solution of 10.56 g of the compound in 25.0 g of water has a freezing point of -5.20oC. Determine the
empirical formula, the molar mass, and the molecular formula of the compound. Assume that the
compound is a nonelectrolyte. (Water has Kf = 1.86oC/m)  

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