An adsorption equilibrium experiment was carried out using granular activated carbon with the results given in Table 2 at left. The initial sorbate concentration was 165 mg/L and the volume of all sample bottles was 50 mL. The carbon was contacted with the sorbate in the aqueous solution for seven days, ensuring a virtually 100 % adsorption equilibrium. Samples of the aqueous solution were obtained from the bottles and assayed to determine the final sorbate concentrations of the solutions. Determine the adsorbed concentrations (qe values, mg/g) of sorbate on the carbon. b. Determine the Freundlich and Langmuir adsorption capacity parameters for the adsorption data. Use both linearizations of the Langmuir model. Determine which adsorption model best fits the data. Consider both the regression statistics and comparisons of plots of the predicted qe vs Ce pairs from each of the sorption model fits with the experimental data. a. c. Table 2. mass final carbon conc (g) (mg/L) 0.85 1 0.438 4 0.33 7 0.275 10 0.239 13 0.213 16 0.188 20 0.169 24 0.154 28 0.14 32 0.127 37 0.116 42 0.108 47 0.097 53 0.088 59 0.079 67 0.07 75 0.061 85 0.049 100