The reaction between propionyl chloride and acetate ion is outlined below. a) Complete the mechanism of the forward reaction by placing curved arrows to show the electron movements in the reactants and intermediate product.

Reaction mechanism follows nucleophilic addition-elimination pathway.

Explanation:

Reaction between propionyl chloride and acetate ion produces acetic propionic anhydride.In the first step, acetate ion gives nucleophilic addition reaction at carbonyl center of propionyl chloride.In the second step, elimination of chloride ion takes place to produce an ester (acetic propionic anhydride).Reaction mechanism has been shown below.

Tolerance to high levels of salinity