106. Solving a chemistry problem
120. For an aqueous solution of propyl alcohol, the following values of the constants of the Shishkovsky equation (at 20 ° C) are determined: A \u003d 0.152 mol / l; B = 0.199. Calculate the surface tension of a solution with an alcohol concentration of 0.1 mol/l. The surface tension of water is 72.5 mN/m.
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