A student spots an unknown sample on a TLC plate. A single spot with an Rf of 0.55 showed up on the plate after developing the sample in hexanes-ethyl acetate 50:50. Does this prove that the unknown is a pure compound?

EBK A SMALL SCALE APPROACH TO ORGANIC L
4th Edition
ISBN:9781305446021
Author:Lampman
Publisher:Lampman
Chapter89: Thin-layer Chromatography
Section: Chapter Questions
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A student spots an unknown sample on a TLC plate. A single spot with an Rf of 0.55 showed up on the plate after developing the sample in hexanes-ethyl acetate 50:50. Does this prove that the unknown is a pure compound?

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