Answered: Explain why the center of the band 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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Explain why the center of the band is used to calculate the R_f value for a cation rather than the leading edge of the band.

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Polar compounds shows tailing nature during tlc elution (See figure). The center of band is the avarage movement of all molecules eluted. Thus, we can say, movement of center is the avarage movement of bulk. So, for measurement of R_f value for a cation, center of the band is considered for calculation rather than, the leading edge of the band.

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