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From the discussion above, which layer (aqueous or organic) of a liquid-liquid extraction should contain the...

  1. From the discussion above, which layer (aqueous or organic) of a liquid-liquid extraction should contain the ammonium salt of an organic compound, and why?

  2. Describe the procedure you would use in the laboratory to determine which layer is organic and which layer is aqueous. (Assume you do not have access to physical constants for the solvents being used.)

  3. What is the purpose of adding anhydrous sodium sulfate into an organic layer that results from a liquid-liquid extraction?

  4. If a mixture of benzophenone and benzoic acid in diethyl ether was extracted with an aqueous solution of NaOH, in which layer is the benzoic acid found? What about the benzophenone?

  5. If you are asked to precipitate a hydrochloride salt of an organic compound (given below) out of an aqueous solution, what is the reagent you should use? Show relevant chemical reactions to support your answer.

  6. Why should organic solvents such as diethyl ether be evaporated in a water bath instead of directly on a hot plate?

  7. If you accidentally get HCl on your skin, what should you do?

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Expert Solution

queen_honey_blossom answered 1 year ago
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