(solution) what is the mechanism for the acid-catalyzed esterification of

(solution) what is the mechanism for the acid-catalyzed esterification of

what is the mechanism for the acid-catalyzed esterification of benzoic acid with methanol?

2.   In the preparation of methyl benzoate, what is the purpose of (a) washing the organic layer with sodium bicarbonate solution? (b) washing the organic layer with saturated sodium chloride solution? (c) treating the organic layer with anhydrous calcium chloride pellets.