1. Below are the data obtained when determining the surface tension of solutions of acetic acid in water depending on the concentration of the acid at 293 K:
C, g/L 0.00 0.01 0.1 0.2 0.4
σ, mJ/m2 72.8 70.0 65.0 62.5 60.0
Construct the dependence of the adsorption of acetic acid on the composition.

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