124. Solving a chemistry problem
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124. Solving a chemistry problem
Calculate the surface activity –dσ/dC at C=0 of a solution of valeric acid at 18 C using Shishkovsky´s empirical equation, knowing its coefficients A=0.0150 mol/l, B=0.178. The surface tension of the solvent (water) is 72.4 mN/m.
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