Suppose you have an unknown X that melts at 85-86 degree C and you do a mixture

Question

Suppose you have an unknown X that melts at 85-86 degree C and you do a mixture melting point with a known compound A that melts at 85-86 degree C. What results would be observed if: X is identical with A. X is not identical with A. Why is a melting-point range determined rather than the actual melting point of a compound? What does a broad melting-point range indicate about the purity of a sample? Gram for gram, table salt lowers the freezing point of water much more than table sugar. Explain. If a volatile compound sublimes and disappears before it melts, how can its melting point range be determined? If a compound is pure, how narrow should its melting point range be expected to be?

Explanation / Answer

Sublimation is processs in which the solid directly converts to gas . If a compound sublimes that means it has no melting point .it has only sublimation point . The temp at which this process happens .

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