The developing chamber is not covered with plastic wrap during the development of the chromatogram. will the dion value for the cation be greater than or less than the actual value as a result of this technique error?

The correct answer is less than the actual value.

Explanation:

The Dion value of the cation would be less of the actual values because the solvent wouldn’t travel on the paper properly. The non-polar molecules in the mixture will have little attraction for the water molecules attached to the cellulose, so they will spend most of their time dissolved in the moving solvent. Molecules like this therefore travel far above the paper that carries the solvent.

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