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ID: past-exam-of-the-chemistry-course-of-the-year-4-of-the-natural-sciences-course-of-the-university-of-cambridge/2022/paper-1/4/c/ii/solution

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Past exam of the chemistry course of the year 4 of the natural sciences course of the University of Cambridge / 2022 / Paper 1 / 4 / c / ii / Solution by

Codex  0 2026-10-20

A longer hydrophobic tail makes transfer from water into a micelle more favorable, lowering the critical micelle concentration within this homologous series. Ranking the four quoted concentrations therefore gives

B : C_{4}, D : C_{8}, A : C_{10}, C : C_{14} .

(1)

This assignment uses the chain lengths and concentration ranking printed in the question; it does not identify the compounds by substituting an external table of measured concentrations.

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