A certain lipid sample consists of a wax of unknown molecular weight and composition. It is known, however that the 2 groups are the same fatty acids. In order to investigate this, saponification and iodine numbers were used. A 3.000 g wax sample was placed under reflux with 20.00 mL of 0.7000 M KOH (56.1056 mg/mmol). It was then back-titrated using a 0.3500 M HCl titrant that required 23.91 mL to the phenolphthalein endpoint. To further characterize this, a 0.100 g sample was titrated for its iodine number. This consumed 3.50 mL of 0.100 N thiosulfate titrant. (Iodine: 126.905 g/eq) a) What is the saponification number of this wax sample? b) What is its Iodine number? c) How would you describe this in terms of unsaturation?

A certain lipid sample consists of a wax of unknown molecular weight and composition. It is known, however that the 2 groups are the same fatty acids. In order to investigate this, saponification and iodine numbers were used. A 3.000 g wax sample was placed under reflux with 20.00 mL of 0.7000 M KOH (56.1056 mg/mmol). It was then back-titrated using a 0.3500 M HCl titrant that required 23.91 mL to the phenolphthalein endpoint. To further characterize this, a 0.100 g sample was titrated for its iodine number. This consumed 3.50 mL of 0.100 N thiosulfate titrant. (Iodine: 126.905 g/eq) a) What is the saponification number of this wax sample? b) What is its Iodine number? c) How would you describe this in terms of unsaturation?

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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