For questions #13, #14, and #15. - An unknown compound ( nonelectrolyte) contains only C,H, and O. Combustion analysis of the compound gives mass percentages of 31.57% C, 5.30% H, and the balance thereof is oxygen. The molar mass is determined by measuring the freezing point depression of an aqueous solution. A freezing point of -5.20°C is recorded for a solution made by dissolving 10.56 g of the compound in 25.0 g of water. # 13. What is the empirical formula of the compound? # 14. What is the molar mass of the unknown compound?
For questions #13, #14, and #15. - An unknown compound ( nonelectrolyte) contains only C,H, and O. Combustion analysis of the compound gives mass percentages of 31.57% C, 5.30% H, and the balance thereof is oxygen. The molar mass is determined by measuring the freezing point depression of an aqueous solution. A freezing point of -5.20°C is recorded for a solution made by dissolving 10.56 g of the compound in 25.0 g of water. # 13. What is the empirical formula of the compound? # 14. What is the molar mass of the unknown compound?
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
Chapter11: Properties Of Solutions
Section: Chapter Questions
Problem 111AE: An unknown compound contains only carbon, hydrogen, and oxygen. Combustion analysis of the compound...
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For questions #13, #14, and #15. - An unknown compound ( nonelectrolyte) contains only C,H, and O. Combustion analysis of the compound gives mass percentages of 31.57% C, 5.30% H, and the balance thereof is oxygen. The molar mass is determined by measuring the freezing point depression of an aqueous solution. A freezing point of -5.20°C is recorded for a solution made by dissolving 10.56 g of the compound in 25.0 g of water.
# 13. What is the empirical formula of the compound?
# 14. What is the molar mass of the unknown compound?
- # 15. What is the molecular formula of the compound?
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