Answer:
Step-by-step explanation:
The Sebacic acid has strong hydrocarbon content which make it insoluble in water. Treating the unknown sample with a base for example NaOH will increase the solubility of the Sebacic acid because the carboxylic acid group will react with the base to form soluble ionic salt. The Sebacic acid is completely dissolved in the base
The resulting solution can be titrated with HCl until there is a color change signifying end of neutralization. The mole of NaOH present before the organic acid is noted, then after titration the mole of the HCl acid is subtracted from the initial mole of the base; this will give the carboxylates present in the solution.