82. Solving a chemistry problem
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82. Solving a chemistry problem
112. The surface tension of aqueous solutions of n-caproic acid in the region of low concentrations obeys the empirical Shishkovsky equation with coefficients A = 0.0043 mol/l and B = 0.178 at 18 °C. (The surface tension of water at this temperature is 72.6 mN/m). Using this equation, calculate the surface activity (-dσ /dC) at C -> 0 analytically.
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