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124. Solving a chemistry problem
Content: 79.rar 240,93 kB
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79. Data on the adsorption of fatty acids on a non-polar carbon adsorbent from aqueous solutions are given in the table:
substance propionic acid butyric acid
С*103, mol/l 0.3 0.5 0.8 0.1 0.2 0.25
G, mol/kg 0.75 1.24 1.98 0.8 1.50 1.86
Assuming that the adsorption isotherm at the indicated concentrations can be described by the approximate form of the Langmuir equation in the region of low concentrations (G = HprKS), show the applicability of the Duclos-Traube rule and calculate the Traube coefficient.
Answer: β = 3.
1. How are fatty acid molecules arranged on carbon adsorbents during adsorption from aqueous solutions?
2. How will the adsorption of fatty acids from aqueous solutions change if silica gel is used as an adsorbent?
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