The boiling point of benzene, C6H6 , is 80.100 °C at 1 atmosphere. Kb (benzene)= 2.53C/m. In a laboratory experiment, students synthesized a new compound and found that when 14.93 grams of the compound were dissolved in 252.2 grams of benzene, the solution began to boil at 80.619 °C. The compound was also found to be nonvolatile and a non-electrolyte. What is the molecular weight they determined for this compound

Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Chapter1: Chemical Foundations
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The boiling point of benzene, C6H6 , is 80.100 °C at 1 atmosphere. Kb (benzene)= 2.53C/m. In a laboratory experiment, students synthesized a new compound and found that when 14.93 grams of the compound were dissolved in 252.2 grams of benzene, the solution began to boil at 80.619 °C. The compound was also found to be nonvolatile and a non-electrolyte. What is the molecular weight they determined for this compound?

 

The freezing point of ethanolCH3CH2OH, is -117.300 °C at 1 atmosphere. Kf(ethanol) = 1.99 °C/m. In a laboratory experiment, students synthesized a new compound and found that when 12.91 grams of the compound were dissolved in 271.5 grams of ethanol, the solution began to freeze at -117.406 °C. The compound was also found to be nonvolatile and a non-electrolyte. What is the molecular weight they determined for this compound?

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