1. Given the density of acetic anhydride 1.08 g/mL, determine the number of moles of acetic anhydride and which reagent is limiting in eq. 1 above. 2. IR spectra of salicylic acid (starting material) and aspirin (product) are shown on the next page. Determine which spectrum corresponds to each compound, and explain by referring to features in the spectra. 3. Which of the compounds below (A and/or B) would be soluble in aq. NaOH? Why?

Fig: 1