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Q: fractional distillation
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Q: What is the problem with using a solvent with a very high boiling point for recrystallization?
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Briefly describe the principles for separating the components of a mixture by solvent extraction.
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- Briefly explain the principles involved in the separation of the components of a mixture by solvent extraction.List and describe two methods that can used to improve the separation of a liquid mixture by fractional distillation3. Describe the characteristics that a crystal obtained through recrystallization must have, the final crystal, not the solvent.
- Briefly explain how slow cooling contributes to the formation of pure crystals during recrystallization.Why is fractional distillation more efficient than simple distillation when purifying liquid mixtures?What are the different melting point apparatus that are available for routine analysis? Describe each.
- Give a fundamental description of the recrystallization process. Explain why it is required and how it can be executed.Describe the differences between a Stober procedure and a water/oil emulsion procedure for the synthesis of colloidal silica particles.1. What limitations are encountered in the application of sublimation as a general method of purification? 2.Explain how a process of fractional sublimation might be applied to a mixture of two substances which sublime closely together.