on Experiment 3 Report Sheet Be sure to include units and correct number of significant figures! Name: Eman Alward 1. What was the melting point of your product? 2. Calculate your final yield as a percentage. Show all work. 3. Draw the arrow-pushing mechanism of the reaction, including all proton transfer steps. LOH NH H OH NH 4. Below is the structure of your product, benzocaine, with protons labelled A-E. The H NMR spectrum is provided on the next page. Describe the multiplicity (with J values) and integration you would expect to observe for each of the protons. Which peak would you expect to have a higher chemical shift, C or D? Draw resonance structures of benzocaine to explain your reasoning. NH4 B D E 5. Please provide a short critical analysis of the lab. Describe any problems that may have occurred, and possible solutions. How and why did the outcome differ from that predicted in your pre-lab report? What was learned from the experiment? shift A 19