1-Bromobutane reacts with water to form 1-butanol according to the following equation. C4H9Br(aq) + 2 H2O(l) → C4H9OH(aq) + H3O+(aq) + Br−(aq) The following is a proposed mechanism for the reaction. C4H9Br(aq) → C4H9+(aq) + Br−(aq) slow C4H9+(aq) + H2O(l) → C4H9OH2+(aq) fast C4H9OH2+(aq) + H2O(l) → C4H9OH(aq) + H3O+(aq) fast Determine the overall rate law for this proposed mechanism. (Rate expressions take the general form: rate = k . [A]a . [B]b.)