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1. Why compounds have different Rf values? Because they have different (Select) 2. The stationary phase in TLC is the [Select] 3. The mobile phase in TLC is the elution solvent

1. Why compounds have different Rf values? Because they have different (Select) 2. The stationary phase in TLC is the [Select] 3. The mobile phase in TLC is the elution solvent

Chemistry
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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1. Why compounds have different Rf values? Because they have different (Select 2. The stationary phase in TLC is the [ Select] 3. The mobile phase in TLC is the elution solvent 4. The spots from the dyes change color when immersed in 1M HCI because the dyes are [ Select ] 5. The dyes can exist in different conjugated forms depending on the 1 Select] 6. The different conjugated forms of a dye have different I Select) 7. The pH of the eluting solvent is I Select ) and the pH of 1 M HCI is [ Select) than 1.0. The pka values for all of the dyes fall I Select ] these pH values. So in the elution solvent, all of the dyes exist in the ISelect ] form and when dipped in the HCI are converted to the | Select ] v form.
Transcribed Image Text:1. Why compounds have different Rf values? Because they have different (Select 2. The stationary phase in TLC is the [ Select] 3. The mobile phase in TLC is the elution solvent 4. The spots from the dyes change color when immersed in 1M HCI because the dyes are [ Select ] 5. The dyes can exist in different conjugated forms depending on the 1 Select] 6. The different conjugated forms of a dye have different I Select) 7. The pH of the eluting solvent is I Select ) and the pH of 1 M HCI is [ Select) than 1.0. The pka values for all of the dyes fall I Select ] these pH values. So in the elution solvent, all of the dyes exist in the ISelect ] form and when dipped in the HCI are converted to the | Select ] v form.
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