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Unformatted text preview: \02 Chemistry 241 Lab 1 : Acid - Base Extraction , Crystallization , and Melting Point 2. ( 3 pts) The pka of the anilinium ion ( the protonated form of aniline ) is 4 . 6 . Draw aniline in the appropriate* 2018 - 2019 state ( s ) of protonation at each PH . In which layer ( water or organic ) would the aniline be at each PH! ?\ PHI.O PH 4 . 6 PH 1 4 . 0 - NH 3 \- NH Z \UNH * - F ~} anilinium cation aniline* Layer ( s ) Water\ - Layer ( s ) Both \ Layer ( s ) organic 3 . ( 1 pt ) When two immiscible liquids are mixed , what physical property determines which solvent layer is on the top ?_ Density 4 . ( 3 pt) At what PHI values would the following pairs of compounds be in different layers in a separatory funnel ? ( give ranges like " between PH1 6 and 8 " or " above PH 12 3 ) A : Benzoic acid and dibromobenzene over !_ 42^ B : Aniline and dibromobenzene under OH_ _^` C : Benzoic acid and aniline between ~} _4:2 0 4. 6 5 . amount of it ? ( 2 pts ) What is the purpose of adding NazSO * ? How do you know when you have added a sufficient For drying up /absorbing excess water. You Know you have enough when some of the Naz Soy is powdery / free. ce - flowing....
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  • Fall '17
  • Goldman
  • Chemistry, Benzene, Naz Soy

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