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2 a pure substance has a melting point ran substance...

Question: 2 a pure substance has a melting point ran substance...

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2) A pure substance has a...... melting point ran substance has a...melting point range. 3) When determining a melting point for an unknown, two melting points are taken, t is a fast melting point and the second is a slow melting point. Explain why one has to perform a fast melting point. Right after taking the first (fast) melting point, what happen if you insert the second capillary tube with your unknown into the melting point apparatus? Explain 4) Can you measure a melting point of a substance that is slightly wet? What difficulties will you encounter if you try to perform the experiment? 5)

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