1a) Solute A has a K = 3 for an extraction between water (phase
1) and benzene (phase 2). If 100 mL of a 0.01M solution of A in
water is extracted one time with 500 mL benzene, what fraction will
be extracted?
1b) For the same example, what fraction will be extracted
if 5 extractions with 100 mL benzene each are used (instead of one
500 mL extraction)?