Homework Help: OCHEM

Posted by Jen on Sunday, August 12, 2012 at 12:43am.

A student needed to determine the percent composition of a mixture that contained fluorene and benzoic acid. The student took 245 mg of the mixture and used the extraction method to separate the components. Then both compounds were recrystallized and dried. The experiment produced 103 mg of fluorene and 105 mg of benzoic acid. Calculate the percent composition of the mixture.

OCHEM - DrBob222, Sunday, August 12, 2012 at 1:03am
Does the mixture contain impurities as well as fluorene and benzoic acid?
Do you know the solubility of fluorene and benzoic acid.
Are you to assume 100% yield?
OCHEM - MAry, Sunday, August 12, 2012 at 10:28pm
I have the same question and it doesn't have any impurities.

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