1. What is the name of the test that could differentiate lauric acid from oleic acid?
- Possible procedure?
- Expected results?
The test that can differentiate lauric acid from oleic acid is called the solubility test. To perform this test, you will need a sample of both lauric acid and oleic acid, as well as a solvent such as ether or ethanol.
Procedure:
1. Take two test tubes and label them as "lauric acid" and "oleic acid."
2. In the test tube labeled "lauric acid," add a small amount of lauric acid.
3. In the test tube labeled "oleic acid," add a small amount of oleic acid.
4. To each test tube, add an equal amount of the chosen solvent (ether or ethanol).
5. Shake each test tube gently to mix the contents.
6. Observe the solubility of each acid in the solvent.
Expected results:
- Lauric acid: Lauric acid is a saturated fatty acid, so it is not soluble in the chosen solvent (ether or ethanol). It will remain insoluble and may form a solid or oil layer at the bottom or float as a separate layer on top.
- Oleic acid: Oleic acid is an unsaturated fatty acid, so it is soluble in the chosen solvent (ether or ethanol). It will dissolve in the solvent, forming a homogeneous solution.
By performing this solubility test, you can differentiate lauric acid (insoluble) from oleic acid (soluble).