Which of the following fatty acids would you expect to be more soluble in cyclohexane?

Draw the skeletal structure and give the name and omega number of the following fatty acid:

CH₃CH₂CH₂CH₂CH₂HC=CHCH₂HC=CHCH₂CH₂CH₂CH₂CH₂CH₂CH₂COOH

Certain omega-3 fatty acids can be found only in animal sources, such as fatty fish. Two of these are eicosapentaenoic acid (EPA) [20:5] and docosahexaenoic acid (DHA) [22:6], both of which are ω-3 fatty acids. DHA has been shown to be important in healthy brain development, so it has recently been added to infant formulas. Breast milk is rich in DHA as long as the mother maintains a healthy diet that includes fish. Draw skeletal structures of the fatty acids EPA and DHA.

The most prevalent fatty acid in coconut oil is lauric acid, a saturated fatty acid containing 12 carbons. Draw lauric acid in skeletal structure.

Draw the condensed structural formula and skeletal structure of the saturated fatty acid with 16 carbon atoms. What is the name of this fatty acid?

Provide a condensed structural formula for a fatty acid with 18 carbons (18:0) and give its common name.

Provide a skeletal structure for Linolenic acid.

Use Figure 23.1 to identify the family of lipids to which each of these molecules belongs.

b.

Draw the complete structural formula of arachidonic acid (Table 23.1) in a way that shows the cis stereochemistry of its four double bonds.