Tony T.
asked • 01/28/19In today’s experiment, some lab students let their chromatograms elute slightly longer than others. If one student’s solvent front traveled to 9.80 cm, and another student’s solvent front traveled 8.00 cm, should these students obtain different Rfs for the known cations? Why or why not?
J.R. S. answered • 01/28/19
Ph.D. in Biochemistry--University Professor--Chemistry Tutor
The Rf values should not be different. The Rf represents the distance traveled by the substance divided by the distance traveled by the solvent. In the case where the solvent traveled 9.8 cm instead of 8.00 cm, the substance will also travel further, so the ratio (Rf) should be the same.
Get a free answer to a quick problem.
Most questions answered within 4 hours.
Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.
