Posted by Lindsay on Wednesday, October 19, 2011 at 6:53pm.
That should give you the percent fluorene and a similar process will calculate percent benzoic acid; however, note that 105 + 141 is not = to 283 mg. Something must be missing from the problem.
1. The sample contained something other than fluorene and benzoic acid, or
2. We assume the extra material was lost during the extraction, either in the aqueous phase or the organic phase (or both) in which case the percent calculated is too low for either/both materials.
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