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Google the structure and molar mass of caproic acid.Using the empirical expression given in class for the surface tension of aliphatic (saturated carbon chain) acids (with b=232.7L/mol for caproic acid)

a) Calculate the surface tension of a 0.1M solution of caproicacid (in water)

b) Explain how you know what the sign is (<0, >0?) of thesurface excess (G) for a 0.1M solution of caproic acid.

c) A closest-packed film of a long chain carboxylic acid isassembled on a hydrophilic support. Estimate the (surfacearea/head group ) inÅ2/molecule

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