Benzocaine More Drug_uses Please Help Me Answer Some Questions Regarding Of The Synthesis Of Benzocaine?

Please help me answer some questions regarding of the synthesis of benzocaine? - benzocaine more drug_uses

I will show the synthesis of benzocaine, next week. I still have some doubts about this lab. Can someone of this experience will help me answer these questions, ask for:
1. What is the product that occurs when the reaction mixture is poured into water?
2.Why is important, absolute ethanol instead of 95% ethanol
3. Why gas develop large that the addition of sodium carbonate and water, the reaction mixture.
Thank you very much. I appreciate it.