5. Two food colors, A and B, have similar structure and similar polarities and a chromatogram for these compounds is illustrated here. A B origin solvent front Which food color, A or B, would you predict to have the larger molecular weight?
5. Two food colors, A and B, have similar structure and similar polarities and a chromatogram for these compounds is illustrated here. A B origin solvent front Which food color, A or B, would you predict to have the larger molecular weight?
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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![**Chromatography Experiment: Food Colors A and B**
**Question:**
Two food colors, A and B, have similar structures and polarities. A chromatogram for these compounds is illustrated below.
![Chromatogram]
The diagram shows a rectangular chromatogram with the origin on the left and the solvent front on the right. There are two spots labeled:
- Spot A is closer to the origin.
- Spot B is further from the origin.
**Analysis:**
- Determine which food color, A or B, you predict to have the larger molecular weight.
**Explanation:**
In chromatography, substances that travel further typically have smaller molecular weights if the structure and polarity are similar. Based on the chromatogram, Spot A moved a shorter distance compared to Spot B. Therefore, it can be predicted that Food Color A has the larger molecular weight.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F81ac168b-024d-494f-99de-3f3384ea3f4e%2F5b67d684-cbf6-4f38-af6e-36a66b0cc92a%2Fl5oha7q.jpeg&w=3840&q=75)
Transcribed Image Text:**Chromatography Experiment: Food Colors A and B**
**Question:**
Two food colors, A and B, have similar structures and polarities. A chromatogram for these compounds is illustrated below.
![Chromatogram]
The diagram shows a rectangular chromatogram with the origin on the left and the solvent front on the right. There are two spots labeled:
- Spot A is closer to the origin.
- Spot B is further from the origin.
**Analysis:**
- Determine which food color, A or B, you predict to have the larger molecular weight.
**Explanation:**
In chromatography, substances that travel further typically have smaller molecular weights if the structure and polarity are similar. Based on the chromatogram, Spot A moved a shorter distance compared to Spot B. Therefore, it can be predicted that Food Color A has the larger molecular weight.
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