Solving a chemistry problem

6. Determine the degree of extraction and reduction in concentration in the aqueous phase in one extraction and the number of successive extractions required to reduce the concentration of aluminum (III) in the aqueous phase to the final concentration c', if V in ml of 0.05 M AlCl3 is shaken with Vo ml of acetylacetone at The pH is 2.0 and the partition coefficient is 23:
Option 1
Vb, ml Vc, ml C’, mol/l
10 2.0 1*10-4