Q: Q1. Give three criteria for a good recrystallization solvent.
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Q: Describe the procedure of how to collect and dry your newly recrystallized compound.
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Occasionally you will have solid impurities “trash” in your heated recrystallization solvent. How do you remove these impurities?
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- When isolating the solid after recrystallization using vacuum filtration what solvent should you use to aid in the rinse from the Erlenmeyer flask to the vacuum filter funnel? (Only pick one answer) Group of answer choices: Cold ethyl acetate Cold ethanol Hot ethyl acetate Hot ethanol Hot water Cold water None of the above, it should not be risnedAt what step in the recrystallization process would a colored impurity be removed?While recrystallizing, what should you do if you have solid particles that don’t dissolve even after adding a lot more hot solvent than called for in the procedure?
- for effective purification by recrystalization while avoiding performing a hot gravity filtration, what is the desired solubility of an impurity at different temperatures? Hot solvent solvent after cooling1.What is the purpose of washing the recrystallized solid with solvent during the vacuum filtration step? Why should the solvent be cold?Which of the following could result in a loss in yield in a mixed solvent recrystallization? i. Use of fluted filter paper in hot filtration ii. No heated solvent in the receiving flask iii.Rapid cooling iv. Both ii and iii