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10 Nov 2019
A student wishes to separate a mixture of the two compounds shown below. They intend to use liquid-liquid extraction to do so. Aniline has an amine functionality and naphthalene is purely a hydrocarbon compound. An amine functional group is acidic, basic, or neutral? Given your answer to A, fill the missing portions of the diagram that describe the process of the separation for aniline and naphthalene. Imagine that you have just completed your extraction of an acidic compound and a neutral compound (like the cinnamic acid and cinnamate extraction you performed). However, upon acidifying the salt, the compound is SOLUBLE in the aqueous layer (unlike the cinnamic acid which crashed out). Describe a procedure for retrieving the compound from the aqueous layer. Remember, water is very difficult to distil or evaporate away.
A student wishes to separate a mixture of the two compounds shown below. They intend to use liquid-liquid extraction to do so. Aniline has an amine functionality and naphthalene is purely a hydrocarbon compound. An amine functional group is acidic, basic, or neutral? Given your answer to A, fill the missing portions of the diagram that describe the process of the separation for aniline and naphthalene. Imagine that you have just completed your extraction of an acidic compound and a neutral compound (like the cinnamic acid and cinnamate extraction you performed). However, upon acidifying the salt, the compound is SOLUBLE in the aqueous layer (unlike the cinnamic acid which crashed out). Describe a procedure for retrieving the compound from the aqueous layer. Remember, water is very difficult to distil or evaporate away.
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Elin HesselLv2
18 Sep 2019