Answered: der the peaks for pentafluorobenzene…

Chemistry by OpenStax (2015-05-04)

1st Edition

ISBN:9781938168390

Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser

Publisher:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser

Chapter12: Kinetics

Section: Chapter Questions

Problem 78E: Compare the functions of homogeneous and heterogeneous catalysts.

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Question

4.Consider the peaks for pentafluorobenzene and benzene in the gas chromatogram shown here. The elution time for unretained solute is 1.06 min. The open tubular column is 30.0 m in length and 0.530 mm in diameter, with a layer of stationary phase 3.0 μm thick on the inner wall.

a) Measruing the width, w, at the baseline on the chromatogram, find the number of plates for these two compounds

b) Use your answer to (a) to find the resolution between the two peaks

c) Using the number of plates N=sqrtN1*N2 with the values from (a) calcuate what the resolution should be and compare your answer with the measured resolution in b

14.77 min
F
n-C,H,6
H-
14.56 min
12.98 min
13.20 min
13.81 min
13.50
Timo (min)
13.00
14.00
14.50
LL
eSuodsa JOLag

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