Which of the following are characteristics of normal-phase chromatography? I - The stationary phase is polar. II - The mobile phase is more polar than the stationary phase. III - The eluent strength increases as the mobile phase becomes less polar. IV - The eluent strength increases as the mobile phase becomes more polar. V - the stationary phase is nonpolar. Answers to choose from: I and IV I, IV and V I and III II and IV II and V ...and why?
Which of the following are characteristics of normal-phase chromatography? I - The stationary phase is polar. II - The mobile phase is more polar than the stationary phase. III - The eluent strength increases as the mobile phase becomes less polar. IV - The eluent strength increases as the mobile phase becomes more polar. V - the stationary phase is nonpolar. Answers to choose from: I and IV I, IV and V I and III II and IV II and V ...and why?
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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Which of the following are characteristics of normal-phase chromatography?
I - The stationary phase is polar.
II - The mobile phase is more polar than the stationary phase.
III - The eluent strength increases as the mobile phase becomes less polar.
IV - The eluent strength increases as the mobile phase becomes more polar.
V - the stationary phase is nonpolar.
Answers to choose from:
I and IV
I, IV and V
I and III
II and IV
II and V
...and why?
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