2. Give TWO Fischer projections that correspond to (S)-2,3-dihydroxypropanoic acid shown below. 24.5 D de is A OH Redu dng Sugar HO revlew the su OH
2. Give TWO Fischer projections that correspond to (S)-2,3-dihydroxypropanoic acid shown below. 24.5 D de is A OH Redu dng Sugar HO revlew the su OH
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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2. Give two Fischer projections that correspond to (S)-2,3-dihydroxypropanoic acid shown below.
![**Practice:**
1. **Which of the following is (are) L-ketopentose(s)?**
- Molecule A:
\[
\begin{array}{c}
CHO \\
| \\
H—C—OH \\
| \\
HO—C—H \\
| \\
H—C—OH \\
| \\
CH_2OH \\
\end{array}
\]
- Molecule B:
\[
\begin{array}{c}
CH_2OH \\
| \\
C=O \\
| \\
HO—C—H \\
| \\
HO—C—H \\
| \\
CH_2OH \\
\end{array}
\]
- Molecule C:
\[
\begin{array}{c}
CH_2OH \\
| \\
C=O \\
| \\
HO—C—H \\
| \\
H—C—OH \\
| \\
CH_2OH \\
\end{array}
\]
- Molecule D:
\[
\begin{array}{c}
CH_2OH \\
| \\
C=O \\
| \\
H—C—OH \\
| \\
HO—C—H \\
| \\
CH_2OH \\
\end{array}
\]
- Molecule E:
\[
\begin{array}{c}
CH_2OH \\
| \\
C=O \\
| \\
H—C—OH \\
| \\
H—C—OH \\
| \\
CH_2OH \\
\end{array}
\]
2. **Give TWO Fischer projections that correspond to (S)-2,3-dihydroxypropanoic acid shown below.**
Molecule with hydroxyl groups on carbon chain:
\[
HO—C—C—C \\
| \\
O, OH on carbons \\
\]
3. **Draw the chair conformation of β-galactopyranose](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ff735b2a6-3af3-46fe-a0e0-8f69d546282a%2F595bc7f5-5dda-4944-9f6c-be1774215374%2F6jlm9gk.jpeg&w=3840&q=75)
Transcribed Image Text:**Practice:**
1. **Which of the following is (are) L-ketopentose(s)?**
- Molecule A:
\[
\begin{array}{c}
CHO \\
| \\
H—C—OH \\
| \\
HO—C—H \\
| \\
H—C—OH \\
| \\
CH_2OH \\
\end{array}
\]
- Molecule B:
\[
\begin{array}{c}
CH_2OH \\
| \\
C=O \\
| \\
HO—C—H \\
| \\
HO—C—H \\
| \\
CH_2OH \\
\end{array}
\]
- Molecule C:
\[
\begin{array}{c}
CH_2OH \\
| \\
C=O \\
| \\
HO—C—H \\
| \\
H—C—OH \\
| \\
CH_2OH \\
\end{array}
\]
- Molecule D:
\[
\begin{array}{c}
CH_2OH \\
| \\
C=O \\
| \\
H—C—OH \\
| \\
HO—C—H \\
| \\
CH_2OH \\
\end{array}
\]
- Molecule E:
\[
\begin{array}{c}
CH_2OH \\
| \\
C=O \\
| \\
H—C—OH \\
| \\
H—C—OH \\
| \\
CH_2OH \\
\end{array}
\]
2. **Give TWO Fischer projections that correspond to (S)-2,3-dihydroxypropanoic acid shown below.**
Molecule with hydroxyl groups on carbon chain:
\[
HO—C—C—C \\
| \\
O, OH on carbons \\
\]
3. **Draw the chair conformation of β-galactopyranose
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