Question

dissolve 1.33 g sodium bromide in 1.5 mL distilled water, using a stir bar. Add 0.80 g 1-butanol. Place water-condenser on round bottom flask. Turn on water, and then drop-wise add 1.1 mL concentrated sulfuric acid to this solution. Once you have finished adding the chemicals, heat to reflux and reflux for 40 minutesGive the mechanism for this reaction, why is it necessary to add the sulfuric acid? Why is it recommended that an excess of acid be used? (4)