**Current Attempt in Progress**The specific rotation of L-dopa in water (at 15°C) is -39.5. A chemist prepared a mixture of L-dopa and its enantiomer, and this mixture had a specific rotation of -23. Calculate the % ee of this mixture.% ee = [___________] %**eTextbook and Media***Explanation:*This task involves calculating the enantiomeric excess (% ee) of a mixture containing L-dopa and its enantiomer. The specific rotation values provided are:- Specific rotation of pure L-dopa: -39.5- Specific rotation of the mixture: -23The enantiomeric excess (% ee) can be calculated using the formula:\[ % ee = \left( \frac{\text{observed specific rotation}}{\text{specific rotation of pure enantiomer}} \right) \times 100 \]In this case:\[ % ee = \left( \frac{-23}{-39.5} \right) \times 100 \]\[ % ee = 0.5823 \times 100 \]\[ % ee = 58.23 \% \]So, the enantiomeric excess (% ee) of this mixture is 58.23%.

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The specific rotation of L-dopa in water (at 15°C) is -39.5. A chemist prepared a mixture of L-dopa and its enantiomer, and this mixture had a specific rotation of -23. Calculate the % ee of this mixture. %ee =

The specific rotation of L-dopa in water (at 15°C) is -39.5. A chemist prepared a mixture of L-dopa and its enantiomer, and this mixture had a specific rotation of -23. Calculate the % ee of this mixture. %ee =

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

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Question

**Current Attempt in Progress**

The specific rotation of L-dopa in water (at 15°C) is -39.5. A chemist prepared a mixture of L-dopa and its enantiomer, and this mixture had a specific rotation of -23. Calculate the % ee of this mixture.

% ee = [___________] %

**eTextbook and Media**

*Explanation:*

This task involves calculating the enantiomeric excess (% ee) of a mixture containing L-dopa and its enantiomer. The specific rotation values provided are:
- Specific rotation of pure L-dopa: -39.5
- Specific rotation of the mixture: -23

The enantiomeric excess (% ee) can be calculated using the formula:

\[ % ee = \left( \frac{\text{observed specific rotation}}{\text{specific rotation of pure enantiomer}} \right) \times 100 \]

In this case:

\[ % ee = \left( \frac{-23}{-39.5} \right) \times 100 \]

\[ % ee = 0.5823 \times 100 \]

\[ % ee = 58.23 \% \]

So, the enantiomeric excess (% ee) of this mixture is 58.23%.

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