111. Solving a chemistry problem
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111. Solving a chemistry problem
Determine the surface activity of acetic ethyl ether from the following values of the surface tension of its aqueous solutions at 298 K:
С, mmol/l 7.8 15.6 31.2 62.5 125 250 500
σ, mJ/m2 69.6 68.0 65.1 61.5 56.2 49.7 41.5
Plot the Gibbs adsorption isotherm. The surface tension of water is 71.96 mJ/m2.
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