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when 0.455 g of an unknown compound is dissolved in 10.0 g of benzene, the freezing point of the solution is 5.144°C. Pure benzene freezes at 5.444°C and has a value for the molal freezing point depression constant of Kf of 5.12°C/m. What is the molar mass of the compound? OA. 777 g/mol 42.8 g/mol О в. Oc.7.77' 10 ° g/mol OD. D 7.77 g/mol 11.3 g/mol O E.

when 0.455 g of an unknown compound is dissolved in 10.0 g of benzene, the freezing point of the solution is 5.144°C. Pure benzene freezes at 5.444°C and has a value for the molal freezing point depression constant of Kf of 5.12°C/m. What is the molar mass of the compound? OA. 777 g/mol 42.8 g/mol О в. Oc.7.77' 10 ° g/mol OD. D 7.77 g/mol 11.3 g/mol O E.

Chemistry: Principles and Practice
Chemistry: Principles and Practice
3rd Edition
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Chapter12: Solutions
Section: Chapter Questions
Problem 12.95QE
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when 0.455 g of an unknown compound is dissolved in 10.0 g of benzene, the freezing point of the solution is 5.144°C. Pure benzene freezes at 5.444°C and has a value for the molal freezing point depression constant of Kf of 5.12°C/m. What is the molar mass of the compound? 777 g/mol А. 42.8 g/mol В. Oc. 7.77´ 10 ° g/mol 7.77 g/mol D. 11.3 g/mol O E.
Transcribed Image Text:when 0.455 g of an unknown compound is dissolved in 10.0 g of benzene, the freezing point of the solution is 5.144°C. Pure benzene freezes at 5.444°C and has a value for the molal freezing point depression constant of Kf of 5.12°C/m. What is the molar mass of the compound? 777 g/mol А. 42.8 g/mol В. Oc. 7.77´ 10 ° g/mol 7.77 g/mol D. 11.3 g/mol O E.
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