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Homework Help: Paper Chromatography

  1. Mar 30, 2008 #1
    1. Why are some pigment spots larger (area and volume) than others?


    I understand that pigments move up the porous paper by capillary action, from research. But why are some pigment colours (areas) larger? THanks
     
  2. jcsd
  3. Mar 31, 2008 #2
    I'd think the area being larger would mostly imply more of the pigment was placed on the paper. I imagine a very small volume of difference between drops of two pigments would cause a still noticeable difference in the size of the spots.
     
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