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Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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Question
![Quinine was the first drug widely used to treat malaria. A solution prepared by dissolving 10.0g of
quinine in 50.0 mL of ethanol (CH;CH2OH) has a freezing point of 1.55°C below that of pure
ethanol. Determine the molar mass of quinine. Assume that quinine is a non-electrolyte.
Note: Ks for ethanol = 1.99•C/m ; density ethanol = 0.789 g/mL](https://content.bartleby.com/qna-images/question/9801d67d-d9e1-466a-b77b-14e38b255f9e/9a2272d7-ba68-4107-acc4-9724d21ff357/va2kkoa.png)
Transcribed Image Text:Quinine was the first drug widely used to treat malaria. A solution prepared by dissolving 10.0g of
quinine in 50.0 mL of ethanol (CH;CH2OH) has a freezing point of 1.55°C below that of pure
ethanol. Determine the molar mass of quinine. Assume that quinine is a non-electrolyte.
Note: Ks for ethanol = 1.99•C/m ; density ethanol = 0.789 g/mL
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