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31-28. The following data were obtained by gas-liquid chro- matography on a 40-cm packed column: Compound Air Methylcyclohexane Methylcyclohexene Toluene tr, min 1.9 10.0 10.9 13.4 W, min — 0.76 0.82 1.06 Calculate (a) an average number of plates from the data. (b) the standard deviation for the average in (a). (c) an average plate height for the column.

31-28. The following data were obtained by gas-liquid chro- matography on a 40-cm packed column: Compound Air Methylcyclohexane Methylcyclohexene Toluene tr, min 1.9 10.0 10.9 13.4 W, min — 0.76 0.82 1.06 Calculate (a) an average number of plates from the data. (b) the standard deviation for the average in (a). (c) an average plate height for the column.

Chemistry
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
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From the data please calculate:

a) an average number of plates from the data

b) the standard deviation for the average in a)

c) an average plate height for the column

31-28. The following data were obtained by gas-liquid chro- matography on a 40-cm packed column: Compound Re Air Methylcyclohexane Methylcyclohexene Toluene tr, min 1.9 10.0 10.9 13.4 W, min 0.76 0.82 1.06 Calculate (a) an average number of plates from the data. (b) the standard deviation for the average in (a). (c) an average plate height for the column.
Transcribed Image Text:31-28. The following data were obtained by gas-liquid chro- matography on a 40-cm packed column: Compound Re Air Methylcyclohexane Methylcyclohexene Toluene tr, min 1.9 10.0 10.9 13.4 W, min 0.76 0.82 1.06 Calculate (a) an average number of plates from the data. (b) the standard deviation for the average in (a). (c) an average plate height for the column.
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