Chapter 5: Q.31 (page 200)
For the given ee values, calculate the percentage of each enantiomer present.
a. 90% ee
b. 99% ee
c. 60% ee
Short Answer
- 95% A and 5% B.
- 99.5% A and 0.5% B.
- 80% A and 20% B.
Chapter 5: Q.31 (page 200)
For the given ee values, calculate the percentage of each enantiomer present.
a. 90% ee
b. 99% ee
c. 60% ee
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Consider the ball-and-stick models of A-D. How is each pair of compounds related: (a) A and B; (b) A and C; (c) A and D; (d) C and D? Choose from identical molecules, enantiomers, or diastereomers.
Label each compound as chiral or achiral.
a.
b.
c.
d.
Which compounds are meso compounds?
a.
b.
c.
The [α] of pure quinine, an antimalarial drug, is –165.
a. Calculate the ee of a solution with the following [α] values: –50, –83, and –120.
b. For each ee, calculate the percent of each enantiomer present.
c. What is [α] for the enantiomer of quinine?
d. If a solution contains 80% quinine and 20% of its enantiomer, what is the ee of the solution?
e. What is [α] for the solution described in part (d)?
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