143. Solving a chemistry problem
5.3. When measuring the difference in refractive indices of aqueous solutions of sodium dodecyl sulfate and water, the following data were obtained:
C * 103, mol / L 9.1 9.38 9.54 9.78 10.02 10.26 10.50
Δn 54 47 43 42 41 41 41
Determine CMC sodium dodecyl sulfate.
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