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6. Dr. Goodchem completed a thin Layer Chromatography of an unkown mixture. He h

ID: 755308 • Letter: 6

Question

6. Dr. Goodchem completed a thin Layer Chromatography of an unkown mixture. He had three spots to show up. The distance between the origin and the solvent front was 2.75 cm. The distance between the origin and the center of spot A was 0.80 cm, compound B travels 2.20 cm, and Compound C travels 1.70 cm. Identify the compounds. (10 points) Compounds (Rf values) 2-methyloctane (0.56) ethanol (0.47) 2-methylbutane (0.80) methanol (0.36) 2-methylpropane (0.75) dimethyl sulfoxide (0.78) Methylvinylether (0.34) 1,4-dimethoxybenzene (0.65) Propylvinylether (0.29) 1,2-dimethoxybenzene (0.62) Benzoic Acid (0.67) 1,3-dimethoxybenzene (0.64)

Explanation / Answer

dimethyl sulfoxide (0.78) Methylvinylether (0.34) 1,4-dimethoxybenzene

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