125. Solving a chemistry problem
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125. Solving a chemistry problem
Determine the surface excess (kmol/m2) for a 20% sulfuric acid solution at 18°C if the surface tension of the solution is 75.2×10-3 N/m and water is 72.75×10-3 N/m . The density of a 20% sulfuric acid solution is 1.143 g/cm3.
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