3. (a) Define the distribution or partition coefficient of L-L extraction. (b) If you need to extract a solute from an aqueous solution through L-L extraction, what solvent properties will you consider and why? (c) A mixture weighing 150kg containing 40kg of isopropyl ether, 20kg of acetic acid, and 90kg of water is equilibrated in a mixer-settler and the phases separated. Determine the amount and compositions of the raffinate and extract layers using the following data table