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30. When 20.0 grams of an unknown compound are dissolved in 500. grams of benzene, the freezing point of the resulting solution is 3.77 C. The freezing point of pure benzene is 5.48°C, and Ke for benzene is 5.12°C/m. What is the molecular weight of the unknown? a. 120 g/mol b. 80.0 g/mol c. 100 g/mol d. 140 g/mol e. 160 g/mol
![](https://prealliance-textbook-qa.oneclass.com/qa_images/homework_help/question/qa_images/130/13053305.jpeg)
30. When 20.0 grams of an unknown compound are dissolved in 500. grams of benzene, the freezing point of the resulting solution is 3.77 C. The freezing point of pure benzene is 5.48°C, and Ke for benzene is 5.12°C/m. What is the molecular weight of the unknown? a. 120 g/mol b. 80.0 g/mol c. 100 g/mol d. 140 g/mol e. 160 g/mol
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Nelly StrackeLv2
30 May 2019
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