Posted by Confused Grace on Monday, March 22, 2010 at 8:45pm.
1. I don't understand "What Aim...."
2. The hypothesis is written in the problem beginning with "Black inks from three different brands......."
3. The remainder of these questions can be found at this excellent site---it even does a separation of inks experiment.
http://www.chemguide.co.uk/analysis/chromatography/paper.html
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