115. Solving a chemistry problem
12. Determine the surface activity of acetic ethyl ether from the given values of the surface tension of its aqueous solutions at 298K.
Plot the Gibbs adsorption isotherm.
С, mmol/l 7.8 15.6 31.2 62.5 123 250
σ, mJ/m2 69.6 68.0 65.7 61.5 56.2 49.7
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