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Author Question: A student adds too much drying agent to an organic solution and the organic solution is completely ... (Read 110 times)

maegan_martin

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A student adds too much drying agent to an organic solution and the organic solution is completely covered by the drying agent. Explain how he or she can salvage the organic solution.

Question 2

Because anhydrous sodium sulfate is a relatively inefficient drying agent, a student uses twice
  as much of this salt as recommended. What are the advantages and disadvantages of adding
  extra drying agent?




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jxjsniuniu

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Answer to Question 1

Add a small portion of fresh, anhydrous organic solvent to the mixture. After transfering the
liquid to another flask, the drying agent can be rinsed with a small amount of fresh solvent.



Answer to Question 2

The principal advantage is that more water will be removed from the solution. The disadvantage is that more of the desired organic compound will be lost by adsorption onto the sodium
sulfate crystals.






 

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