The purpose of this lab was have students separate mixtures by using chromatography
paper and 0.1% NaCl developing solution. Spots of the sample were put on
the paper, which was then placed in the solution. As the water crept up
the paper, the different colors in the mixture were separated. First
students tried different marker colors to see what colors they were made up
of. Then M & M candies were separated by color and placed in water to
dissolve the shell coloring. A drop of the dye color was added to the
paper with a toothpick and the placed in the developing solution to see what
colors composed the dye mixtures.