Answered: How can i find Rf value when there is…

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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How can i find Rf value when there is no parameter? Also, why #1 did move more upward and #2 move slowly?

Expert Solution

Step 1

RF value = (The distance travelled by the compound)/ ( the distance travelled by the solvent front)

TLC plate is made of silica. All compound according to their polarity move differently. The polar compound bind more strongly than less polar compound, that why the non-polar compound move more distance than polar compound. This is the fundamental concept of Rf difference.

To calculate the R_f of a specific spot the method has been shown is step-2.

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