Students collect data using different solvents to identify the optimal solvent for separation. They will then illustrate the intermolecular forces that are acting on the molecules in the separation. Students evaluate the chromatograph with different solvents and establish a connection between molecular structure and intermolecular attraction to the solvent. The activity contains enough materials for 15 groups of students as well as a Teacher’s Guide and Student Study Guide Copymasters. Meets Big Idea 2, Investigation 5, Primary Learning Objective 2.10. Kit Includes: 30mL Food Dye Blue #1, 0.5% 30mL Food Dye Yellow #5, 0.5% 30mL Food Dye Red #40, 0.5% 200mL 9:1 Petroleum Ether/Acetone 200mL Ethyl Alcohol, 95% 200mL Isopropyl Alcohol, 99% 200mL Acetone 200mL Deionized Water 15 Chromatography Paper 30 Glass Vials 4 Capillary Tubes Materials needed but not supplied: Metric Rulers DOT Info: UN1170, Ethanol, 3, II, Ltd Qty UN1219, Isopropanol, 3, II, Ltd Qty UN1993, Flammable liquid, n.o.s., (Petroleum ether, Acetone), 3, II, Ltd Qty UN1090, Acetone, 3, II, Ltd Qty WARNING: This product can expose you to chemicals including Methanol, which is known to the State of California to cause reproductive harm. For more information go to http://www.P65Warnings.ca.gov.