how to draw this graph please

Example 13-1. Dilute countercurrent immiscible extraction A feed of 100.0 kg/min of a 1.2 wt% mixture of acetic acid in water is to be extracted with 1-butanol at I atm pressure and 26.7C. We desire an outlet concentration of 0.1 wt% acetic acid in the exiting water. We have available solvent stream 1 that is 44.0 kg min of pure 1-butanol and solvent stream 2 that is 30.0 kg/min of 1-butanol that contains 0.4 wt% acetic acid. Devise a scheme to do this separation, find the outlet flow rate and concentration of the exiting 1-butanol phase, and find the number of equilibrium contacts needed. 0.0201 1 y 0.015 11 y, 0.01649 10 R 9 E - 1.35 Doa (15 T! XS to 02 (2) IDR