Vhat is the équation for retention factor (Rf)? O 1) (distance traveled from the origin to the compound)/(distance traveled by th origin to the solvent front) O 2) (distance traveled from the bottom of the plate to the compound)/(distance 2) traveled from the bottom of the plate to the solvent front) 3) (distance traveled from the bottom of the plate to the solvent front)/(distance traveled from the bottom of the plate to the compound) 4) (distance traveled from the origin to the solvent front)/(distance traveled from the origin to the compound)
Vhat is the équation for retention factor (Rf)? O 1) (distance traveled from the origin to the compound)/(distance traveled by th origin to the solvent front) O 2) (distance traveled from the bottom of the plate to the compound)/(distance 2) traveled from the bottom of the plate to the solvent front) 3) (distance traveled from the bottom of the plate to the solvent front)/(distance traveled from the bottom of the plate to the compound) 4) (distance traveled from the origin to the solvent front)/(distance traveled from the origin to the compound)
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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Transcribed Image Text:**Understanding Retention Factor (Rf) in Chromatography**
In chromatography, the retention factor (Rf) is used to characterize the movement of a compound on a chromatographic plate. It provides insight into how far a compound has traveled relative to the solvent front. The equation for determining Rf is crucial in analyzing chromatographic results.
**Question:**
What is the equation for retention factor (Rf)?
**Options:**
1. (distance traveled from the origin to the compound) / (distance traveled by the origin to the solvent front)
2. (distance traveled from the bottom of the plate to the compound) / (distance traveled from the bottom of the plate to the solvent front)
3. (distance traveled from the bottom of the plate to the solvent front) / (distance traveled from the bottom of the plate to the compound)
4. (distance traveled from the origin to the solvent front) / (distance traveled from the origin to the compound)
The correct equation for calculating the retention factor (Rf) is:
**Option 1**: (distance traveled from the origin to the compound) / (distance traveled by the origin to the solvent front)
This definition allows for a standardized ratio that makes it possible to compare the behavior of different compounds under similar conditions in chromatographic analysis.
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