4. Did increasing the polarity of your eluent increa 5. Given that the solid surface is polar, explain why polar samples have lower Rf values than less polar ones. 6. Explain why increasing eluent polarity increases the Rf value for a given sample? 7. In what order, from top to bottom, would you expect to see the spots for naphthalene (C10H8), butyric acid (CH3CH,CH,CO,H), and phenyl acetate (CH3CO,C,H5)? Top Middle Bottom 8. In what order, from top to bottom, would you expect to see the spots for the following: acetic acid = CH3CO2H butanal = CH3CH2CH2CHO; 2-octanone = CH3COCH2CH2CH2CH2CH2CH3 deeane CroH22; 1-butanol = CH3CH2CH2CH2OH %3D doop %3D Bottom %3D 9. If an eluent of too low polarity is used for the development of a TLC plate, will the sample spots be somewhere in the middle, way at the bottom, or way at the top of the plate? 10. If an eluent of too high polarity is used for the development of a TLC plate, will the sample spots be somewhere in the middle, way at the bottom, or way at the top of the plate?

4. Did increasing the polarity of your eluent increa 5. Given that the solid surface is polar, explain why polar samples have lower Rf values than less polar ones. 6. Explain why increasing eluent polarity increases the Rf value for a given sample? 7. In what order, from top to bottom, would you expect to see the spots for naphthalene (C10H8), butyric acid (CH3CH,CH,CO,H), and phenyl acetate (CH3CO,C,H5)? Top Middle Bottom 8. In what order, from top to bottom, would you expect to see the spots for the following: acetic acid = CH3CO2H butanal = CH3CH2CH2CHO; 2-octanone = CH3COCH2CH2CH2CH2CH2CH3 deeane CroH22; 1-butanol = CH3CH2CH2CH2OH %3D doop %3D Bottom %3D 9. If an eluent of too low polarity is used for the development of a TLC plate, will the sample spots be somewhere in the middle, way at the bottom, or way at the top of the plate? 10. If an eluent of too high polarity is used for the development of a TLC plate, will the sample spots be somewhere in the middle, way at the bottom, or way at the top of the plate?

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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