### Chromatography and Retention Factor (Rf) Educational Exercise**Question:**If the stationary phase and the compound being tested are both polar, will the retention factor (Rf) likely be smaller or larger than if a nonpolar compound was tested? Why?**Multiple Choice Options:**1. The retention factor will likely be smaller as it has a smaller interaction with the stationary phase.2. The retention factor will likely be greater as it has a smaller interaction with the stationary phase.3. The retention factor will likely be smaller as it has a greater interaction with the stationary phase.4. The retention factor will likely be greater as it has a greater interaction with the stationary phase.---**Explanation:**In chromatography, the retention factor (Rf) is a measure of how far a compound travels relative to the distance traveled by the solvent. It is calculated as follows:\[ Rf = \frac{\text{Distance traveled by the compound}}{\text{Distance traveled by the solvent}} \]- **When both the stationary phase and the compound are polar:** The compound will have a higher affinity for the stationary phase, leading to greater interaction and thus slower movement. This results in a smaller Rf value.- **When the stationary phase is polar and the compound is nonpolar:** The compound will have less interaction with the stationary phase and therefore move faster, resulting in a larger Rf value.**Interpretation of Options:**- **Option 1:** Incorrect - Smaller interaction would lead to a greater Rf.- **Option 2:** Incorrect - Smaller interaction would lead to a greater Rf, not applicable here.- **Option 3:** **Correct** - Greater interaction with the stationary phase results in a smaller Rf.- **Option 4:** Incorrect - Greater interaction would result in a smaller Rf, not a greater one.**Correct Answer:** **3) The retention factor will likely be smaller as it has a greater interaction with the stationary phase.**

TLC involves the separation of organic compounds from each other based on their polarity differences…

If the stationary phase and the compound being tested are both polar, will the retention factor (Rf) likely be smaller or larger than if a nonpolar compound was tested? Why? The retention factor will likely be smaller as it has a smaller interaction with O 1) the stationary phase 2) The retention factor will likely be greater as it has a smaller interaction with the stationary phase 3) The retention factor will likely be smaller as it has a greater interaction with the stationary phase 4) The retention factor will likely be greater as it has a greater interaction with the stationary phase

If the stationary phase and the compound being tested are both polar, will the retention factor (Rf) likely be smaller or larger than if a nonpolar compound was tested? Why? The retention factor will likely be smaller as it has a smaller interaction with O 1) the stationary phase 2) The retention factor will likely be greater as it has a smaller interaction with the stationary phase 3) The retention factor will likely be smaller as it has a greater interaction with the stationary phase 4) The retention factor will likely be greater as it has a greater interaction with the stationary phase

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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