The goal of this experiment is to separate a mixture of two unknown compounds in

Question

The goal of this experiment is to separate a mixture of two unknown compounds into individual MapA components and to identify the compounds. Answer the questions below More than one answer may be possible. hy do we need to be especially careful when working with diethyl ether? Because it is highly acidic and can burn the skirn. consciousness Because it is extremely volatile and flammable. Fumes can cause drowsiness & dizziness, and in high concentration,.los of Of all of the unknowns, which compounds can be separated from the unknown mixture by extraction with NaOH solution? What developing solvents are recommended for the TLC procedure hexanes combination of hexanes & ethyl acetate combination of hexanes & ethyl acetate + 2'-bromoacetanilide benzhydrol drop of acetic acid if streaking occurs pacetophetidide biphenyl triphenylmethane What are you going to use to identify the unknown compounds? propyl 4-hydroxybenzoate 4-bromoacetanilide Infrared & NMR spectra Melting point and Rr values Mass of the unknown after recrystallization caffeine phenylacetic acid Incorrect

Explanation / Answer

A mixture of 2/4 - bromoacetanilide and phenyl acetic acid.

Extraction with NaOH, phenyl acetic acid in aqueous layer and bromoacetanilide in the organic layer. Acetanilide can be separted by solvent removal and further purified by recrystallization. Whereas phenyl aceitc on further acidification of the aqueous layer gets precipitated.

Identification by melting point/ IR / NMR

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