How often does the water cycle occur on earth?
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Answer:
The retention factor, k is 2.49
Explanation:
According to the theory of High-Performance Liquid Chromatography (HPLC), the retention factor (or capacity), k, of a column is the ratio of the retention time of a retained analyte (toluene) to that of the un-retained solute (methane).
This implies that:
k = =
retention factor, k = 2.49.
Note that there is no unit for retention factor, as it is a ratio.