Suppose you are planning the separation of three compounds (A, B, and C) by column chromatography (CC) on silica gel.  You start by running several TLC’s in order to find the best solvent system for the separation. The results are summarized in the table below. Which solvent or solvents would be best for a separation of compound C  (from A and B) by column chromatography? Solvent Rf for A Rf for B Rf for C Hexane 0.04 0.30 0.04 Toluene 0.22 0.45 0.19 Dichloromethane 0.52 0.75 0.45 Ethyl acetate 0.80 0.80 0.76

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