b) Fit the data to the Freundlich isotherm equation according to the graphical methods presented in class. Show your graph and determine the 1/n and K_F parameters (9 pts).

c) Fit the data to the Langmuir isotherm equation according to the graphical methods presented in class. Show your graph and determine the b and K parameters (9 pts).

d) What is the predicted value of q at maximum adsorption from application of the Langmuir Model (3 pts)?

e) Which model fits the experimental data best? Give reasons for you answer and discuss the major limitations of this model (4 pts)?

3. The data below correspond to Cu(II) adsorption by an Andisol ( 30pts). a) Using computer software, plot an adsorption isotherm with the data and classify it on the basis of initial slope (5 pts). b) Fit the data to the Freundlich isotherm equation according to the graphical methods presented in class. Show your graph and determine the 1 and KF parameters ( 9 pts). c) Fit the data to the Langmuir isotherm equation according to the graphical methods presented in class. Show your graph and determine the b and K parameters ( 9 pts). 1 d) What is the predicted value of q at maximum adsorption from application of the Langmuir Model (3 pts)? e) Which model fits the experimental data best? Give reasons for you answer and discuss the major limitations of this model ( 4pts)