Homework Help: Chemistry

Posted by Laura on Wednesday, April 7, 2010 at 9:20pm.

A stoppered flask at 25 C contains 250 mL water, 200 mL octanol, and 50 mL of air. An unknown mass of o-xylene is added to the  flask and allowed to partition among the phases. After equilibrium has been established, 5.0 mg of o-xylene are measured in the water.  What is the total mass (g) of o-xylene present in the flask?

Chemistry - DrBob222, Wednesday, April 7, 2010 at 9:54pm
Do you have the partition coefficient.
K_{organic/aqueous} = ??
Chemistry - Laura, Thursday, April 8, 2010 at 10:42am
I asked the professor, he said I didnt need it to solve the problem.

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