Homework Help: TLC

Posted by sue on Sunday, February 18, 2007 at 11:36am.

The following two solvents systems were found to separate compounds x and y by flash column chromatography:
X- hexanes/ethyl acetate 10:1
Y- hexanes/ethyl acetate 10:4
which is more polar X or Y?
Which solvent system must be used first?

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