Homework Help: organic chem

Posted by Laura on Monday, June 22, 2009 at 12:33pm.

A student's correctly calculated value for the percent recovery of the purified unknown solid in a recrystallization experiment was 102%. Assume that the student performed all steps of the procedure correctly

a) comment of the validity of this result; include reasons

b) suggest possible explanation for such a result

organic chem - bobpursley, Monday, June 22, 2009 at 1:48pm
Either the student witnessed a miracle, or a measurement error occurred. I would suspect the latter.
organic chem - DrBob222, Monday, June 22, 2009 at 3:30pm
Another possibility is that the measurements were ok but the product contained some of the impurity or some of the solvent.

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