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0731. Solving a chemistry problem
Uploaded:
18.11.2023
Content: 2.zip 88,45 kB
Content: 2.zip 88,45 kB
Product description
2. Based on the available experimental data on the dependence of the surface tension of aqueous surfactant solutions on the concentration (sodium 5-hexadecyl sulfate, t=20 C), construct a Gibbs adsorption isotherm.
Spav, mmol/l 0 0.001 0.005 0.01 0.05 0.1 0.5 1.0 2.0
b, mJ/m2 72.8 71.6 69.7 67.1 58.3 53.8 41.8 36.0 35.8
Determine the surface activity and calculate the amount of excess adsorption of an aqueous surfactant solution at a concentration of 0.05 mmol/l.
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