Esterification of a carboxylic acid with an alcohol in the presence of mineral acid as catalyst is a reversible reaction.
(i) Suggest two things that can be done with the products formed to push the reaction in the forward direction.
(ii) If one mole of ethanoic acid and one mole of ethanol are allowed to reach equilibrium at 298K, how many moles of ethyl ethanoate and ethanoic acid are present at equilibrium? (Assume `K_c = 4` at 298K)