Experimental Procedures Part I: Qualitative Identification of artificial sweeteners that contain Aspartame. You are provided with an aspartame stock solution (5.00 mg/mL). This reference material will be used to identify the presence of aspartame in various artificial sweeteners. What is the purpose of the aspartame stock solution?
1) To determine the concentration of aspartame in the stock solution
2) To serve as a control for comparison with the artificial sweeteners
3) To test the solubility of aspartame in different solvents
4) To measure the pH of the aspartame stock solution