Based on the results of measurements of the surface tension of solutions of n-amyl alcohol in water at 39.0 °C depending on the concentration (table below), find the limiting adsorption of alcohol Г by a graphical method, and calculate the area occupied by 1 molecule of alcohol in a saturated adsorption layer under the assumption of monomolecular adsorption.
С, mmol/l 0 1.25 2.50 3.70 4.90 7.40 9.8 14.7 19.6 29.4
b, mN/m 72.1 69.5 66.6 63.4 61.2 57.1 52.9 47.8 44.5 39.6

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