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How could you find the % recovery of the separated benzoin and benzil from column chromatography...

How could you find the % recovery of the separated benzoin and benzil from column chromatography results using distance traveled or Rf values and initial masses?

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The chemical formula of benzil is (PhCO)2 and the formula of benzoin is PhCOOHPh. The benzoin is more polar than benzil. Sice in benzoin one OH group is present which will interact more with a polar solvent. So the separation of these two compounds in the column is not so difficult. The Rf value for the benzil will be around 0.8 and for benzoin, it will be around 0.2 in the moderate polar solvent system. The mass of the benzoin is 212 g/mol and benzil is 210 g/mol. The structure are given below.

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