114 DIY Science: Illustrated Guide to Home Chemistry Experiments
q: 2 By what mechanism does chromatography separate the components of a mixture?
q: 3 Why did we use a pencil rather than a pen to label and mark the chromatography paper?
q: 4 Why should the solvent front be marked immediately after the chromatograph develops?
q: 5 Define the term “Rf value.”
q 6 : How is an Rf value calculated?
q: 7 On a particular chromatogram, the solvent front moved 9.5 cm from the point of application and one of the components
moved 6.2 cm from the point of application. What is the Rf value for that component?