Form a working group with other students and discuss the following questions. ne the structures of the FD&C Red No. 40, Blue No. I and Yellow No. 5 dyes. What are the similarities and differ- ences in the structures of the three dyes? A haue SO Na 2. In the Introductory Activity 3. Based on the diagrams and intermolecular attractions identified in Question 2, predict and compare the nature of intermo- 4. Chromatography paper, and paper in general, is highly hydrophilic. Paper is made from a natural polymer called cellulose, the developing solvents were 2% sodium chloride aqueous solution and 2% isopropyl alco- hol aqueous solution. Draw separate molecular diagrams of how sodium chloride and isopropyl alcohol would interact in water. Identify the types of intermolecular attractions within each diagram lecular attractions experienced by the FD&C Red No. 40, Blue No. 1 and Yellow No. 5 dyes with the two solvents. which is a long chain of glucose molecules. Glucose is a cyclic structure with a number of-OH groups around the ring. a. Predict and explain the types of intermolecular forces that would occur between paper and water. How do these i b. Explain the types of intermolecular interactions that would occur between the FD&C Red No. 40, Blue No. 1 and tions account for the hydrophilic nature of paper? Yellow No. 5 food dyes and the paper