********** PLEASE USE MATLAB TO SOLVE **********

3.19 G. Ostrogovich, C. Csunderlik, and R. Bacaloglu (J. Chem. Soc. B1971, 18) used electrical conductivity measurements to monitor the progress of the reaction between cthyl chloroformate and aniline in acetone solution at 25C. A+2BC+D+E They reported the results tabulated here for the dependence of the concentration of the quaternary ammonium salt on time. Initial concentrations of ethyl chloroformate and aniline were 1.396102 and 4.605102M, respectively. Are the data below consistent with a rate expression of the mixed secondorder form (r=kCACB) ? If so, what is the rate constant