answer all parts with work

The compound ethyl 4-aminobenzoate is insoluble in water. Upon addition of 1MHCl, it becomes fully soluble. a) Explain using intermolecular forces the insolubility of this compound prior to addition of HCl; b) Identify the three basic centers in this molecule and justify your answer; c) Review the pKs chart and identify the basic center that is most likely to react with HCl; d) Use arrow pushing to illustrate the reaction between the basic center you selected; e) Justify shift in the equilibrium for your reaction towards the right or the left. (15 pts)