Extraction efficiency problem PLease help.... 1. The problem statement, all variables and given/known data The distribution coefficient, k = (conc. in CH2Cl2/conc in H2O), between dichloromethane and water for solute A is 7.3. What weight of A would be removed from a solution of 10 g of A in 100 mL of water by a single extraction with 100 mL of dichloromethane? What weight of A would be removed by three successive extractions with 33 mL portions of dichloromethane? How much dichloromethane would be required to remove 98.5% of A in a single extraction?