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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Question
Identify which of the Fischer projections matches the structure in the box.
- A) I
- B) II
- C) III
- D) IV

Transcribed Image Text:**Depiction of Stereochemistry and Structural Variants of Tartaric Acid**
1. **Chemical Structure**:
- The upper box illustrates a chemical structure indicating the stereochemistry of tartaric acid. The molecule features:
- A top hydroxyl group (HOH₂C group)
- A middle chiral carbon with an attached hydroxyl group (OH) on a wedge, indicating a particular spatial orientation
- A carbonyl group (C=O) attached to an OH group at the end
2. **Stereochemical Variants**:
- The box below exhibits four stereochemical representations, labeled I to IV, to show different configurations of tartaric acid. Each structure consists of:
- A carboxylic acid group (CO₂H) at the top
- Adjacent hydroxyl (OH) and hydrogen (H) groups vary in orientation across the four structures
- A primary alcohol group (CH₂OH) at the bottom
- **Variant I**:
- From top to bottom: CO₂H, OH, OH, CH₂OH
- **Variant II**:
- From top to bottom: CO₂H, H, OH, CH₂OH
- **Variant III**:
- From top to bottom: CO₂H, OH, H, CH₂OH
- **Variant IV**:
- From top to bottom: CO₂H, H, H, CH₂OH
These diagrams highlight the chirality and potential isomerism of tartaric acid's structures, which affect its physical and chemical properties.
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