20. Suppose you have a 1:1:1 by weight mixture of three solid compounds, salicylic acid + 4-nitroaniline + naphthalene. You dissolve 1 gram of this mixture in diethyl ether, and spot the solution on a TLC plate. After the plate is developed, you see three spots. You then extract the ether solution with strong aqueous base and once again place a tiny drop of the ether solution on a TLC plate. Which spot(s) would disappear?
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20. Suppose you have a 1:1:1 by weight mixture of three solid compounds, salicylic acid + 4-nitroani...
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