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The experiment aims to clarify the meaning of purity in the chemical sense ; apply the method of recrystallization in the purification of a solid sample; recognize melting point as a physical property that can serve as an index of purity; determine the melting point of a substance using a simple apparatus; and compare the melting point of a pure versus impure sample of a substance.
Rather, the melting point of the major component will be depressed, and the observed melting range will begin lower than 130Âº. 6. Even when two chemicals with exactly the same melting point when pure are mixed, the resulting melting point is depressed. Mixed Melting Points That mixtures have depressed melting points, even when both components have