Saponification: Soaps and Detergents d. Did you isolate a single type of fatty a

Question

Saponification: Soaps and Detergents d. Did you isolate a single type of fatty acid, or a mixture of fatty acids? Explain. Were the fatty acids soluble in acetone? Was the fat soluble? Was the soap soluble? e. 4. Properties of Soaps and Detergents a. Did your sodium and potassium soap solutions show the same cleaning action? If not, explain b. Describe how the soap molecules functioned to remove the grease spot. c. Did your potassium soap solution form a precipitate with any of the metal ions that were added? 1f so, which? d. Write equations for any reactions that occurred between the soap solution (use a typical fatty acid residue) and the metal ions.

Explanation / Answer

d. Oil is a mixture of fatty acid, when the saponification has done we need to seperate the mixture of fatty acids.

e. Fatty acids are partially soluble in acetone. But soap is a combination of sodium or potassium salts of long chain carboxylic acid. Hence, it is water soluble.

4)

a) Cleansing action of soap depends on the hardness of water. But it doesn't depends on the whether it is sodium or potassium ions.

b) It forms a sphere type molecules known as micelles, it holds the oil or grease tightly to remove it from the clothes.

c) It will be precipitated by using NaCl. Thus, sodium ions are helping to precipitate the soap solution.

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