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If you have 6.76 g of caffeine dissolved in 57.2 mL of water and the extraction coefficient between H2O and CH2Cl2 is 21.51. How many grams of caffeine will extract into the CH2Cl2 layer if you use 89.9 mL?

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Chemistry: The Molecular Science
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Author: John W. Moore, Conrad L. Stanitski
Publisher: Cengage Learning
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