5. Chirality

What is the configuration of the following compounds? (Use the given structures to answer the question.)

a. ($-$)-glyceric acid

b. ($+$)-isoserine

What is the configuration of the following compounds? (Use the given structures to answer the question.)

c. ($+$)-lactic acid

What is the configuration of each of the asymmetric centers in the following compounds?

a.

b.

Indicate whether each of the following structures is (R)-2-chlorobutane or (S)-2-chlorobutane:

c.

d.

What is the configuration about each of the asymmetric centers in aspartame?

Draw a perspective formula for each of the following:

a. (S)-3-chloro-1-pentanol

b. (2R,3R)-2,3-dibromopentane

Assign the absolute stereochemistry for each of the following molecules drawn in their Fischer projection.

(a)