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Unformatted text preview: D. Why is it important to mark the solvent level on the chromatography paper when you remove it from the petri dish? Extra credit and/or extra fun possibilities: Experiment with different solvents such as pure water, rubbing alcohol, or a mixture of alcohol and water. Do not use flammable solvents to experiment! There are often interesting dyes making up the colors of marker pens (especially black). If you want to experiment with marking pens remember not to use permanent ink markers for this experiment. An extra sheet of chromatography paper is included in your LabPaq in the Special Papers Bag. However, you can usually substitute white coffee filters and some brands of paper towels for chromatography paper if you want to conduct more than one extra trial. 2...
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