Yes there is a relationship between molecular

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Yes there is a relationship between molecular polarity and Rf values. If the molecule is polar, then it will interact with the silica on the TLC plates, since it too is polar. If interactions occur, the molecule wont travel as far, which will lead to a smaller Rf value. If the molecule is nonpolar, no interactions will occur. This will result in a longer distance traveled with the solvent and a larger Rf value. The Rf values compared to the predicted ones were relatively close. Ethyl 4- amino benzoate was predicted to be relatively polar, which explains why it didn’t move much and had a small Rf value. However, just because a molecule is polar or nonpolar, that doesn’t mean that the Rf value it going to be large or small. The Rf is always going to be the same for these molecules. If there are two spots, then its not pure. If there is only one spot, then it is pure. a. What were the predictions for the other mixtures? And how were they compared to the actual results? Ask class.
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