131.Solving a chemistry problem

22. When adsorption of stearic acid from a solution in benzene on colloidal nickel the following data were obtained:
 
C · 10 3, mol / dm 3 0.2 2.0 3.8 5.0 5.2 8.1
G · 10 5, mol / kg 2.0 3.6 4.0 4.3 4.4 4.7
 
Calculate the constants of the Langmuir equation Γ ∞ and K using the graphical method. Determine the specific surface area of the adsorbent, if the area,
occupied by one molecule of stearic acid in a saturated adsorption layer, S 0 = 25 · 10 -20 m 2.