Paper Chromatography
Purose- the purpose is you will use paper chromatography to separate colors from ink. If the ink is soluble in water, it will travel up the paper with the water. Solubility is related to the type of intermolecular forces between the substances; substances with similar IMF’s will be soluble. As the solvent rises on the paper and evaporates, it leaves the colors in its path.
Background info- I know that water is a polar solvent and that rubbing alcohol is a nonpolar solvent.
Materials- 1. Chromatorgraphy paper 2. 2 Petri Dishes
3. Black felt tips pens 4. Water
5. Felt tip pens of other colors 6. Alcohol
Procedure-
1. Obtain two pieces of chromatography paper. Trace a quarter in pencil, in the center of the paper 2. Poke a small hole in the center of the circle 3. Select 3 felt tip pens of different colors (one must be black). Make one dot with each en on each piece of chromatography paper along the line traced around the center, as illustrated on the board. 4. Use a pencil to label these dots with the color and “FT” for felt tip. 5. Select 3 permanent makers of different color (one must be Black). Make one dot with each marker on each piece of chromatography paper along the line traced around the center, as illustrated on the board. 6. Use pencil to label these dots with the color and “P” for permanent. 7. Remove the papers from the solvents when the solvent has moved to within 2 cm of the edge of the paper.

Conclusion-