Extraction: Definition, Solvents, and Lab Procedure
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Questions and Answers

What is the purpose of adding NaHCO3 to the separatory funnel during the lab procedure?

  • To precipitate the organic compounds
  • To neutralize any acids present (correct)
  • To dry out the organic layer
  • To extract the organic layer
  • Why is anhydrous calcium chloride used when drying the organic layer?

  • To neutralize the organic compounds
  • To separate biphenyl from 4-bromophenol
  • To facilitate acid-base reactions
  • To remove water from the organic layer (correct)
  • What is the purpose of adding NaOH to the separatory funnel during the lab procedure?

  • To neutralize any bases present (correct)
  • To extract the organic layer
  • To dry out the organic layer
  • To precipitate the organic compounds
  • Why is t-butyl methyl ether used as the solvent in this extraction experiment?

    <p>To enhance solubility of the organic compounds</p> Signup and view all the answers

    What is the main purpose of using a separatory funnel in this extraction procedure?

    <p>To separate immiscible liquids</p> Signup and view all the answers

    Why is HCl added to tube A and tube B during the lab procedure?

    <p>To neutralize any remaining NaHCO3 or NaOH</p> Signup and view all the answers

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