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student performed two melting-point determination on a crystalline compound. in one determination the capillary tube contained a sample about 1-2 mm in hight and the melting range was found to be 141-142C. In the other determination the sample hight was 4-5 mm, and the melting was found to be 141-145C. The reported melting point for the compound is 143C. explain what may have caused the broader melting range observed for the second sample.

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Category:- Chemistry
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