Ethanol and ethanoic acid were mixed and allowed to reach equilibrium at a temperature T. The mixture which initially contained 1 mole of ethanol and 2 moles of ethanoic acid in 1 L now contains 0.35mol dm-3 at equilibrium. a. Calculate the concentrations of the other species in the equilibrium mixture (3 marks). b. Determine Kc and state its units (3 marks).