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Montano1993 [528]
3 years ago
13

Why can't you use pen to mark the chromatography paper in this experiment?

Chemistry
1 answer:
trasher [3.6K]3 years ago
3 0
The graphite of the pencil sits on top of the paper and won't affect the results. If you use ink, it will seep into the paper and itself be subjected to the chromatographic process.

Hope this helped :)
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