135. Solving a chemistry problem
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135. Solving a chemistry problem
5.8. Determine CMC of sodium alkyl sulfate detergent from the following data:
lgC -2.2 -2.00 -1.88 -1.83 -1.81 -1.79 -1.75 -1.62
b, dyne / cm 50 43 39 38 37 36 35 36
Surfactant concentration is expressed in mol / L.
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