With a pencil, on the filter strips, label the name of the black pen or marker. You may add more solvent to the 100 mL beaker if the bottom of the strips does not touch the surface of the solvent.
Also, what is the independent variable in chromatography?
Your independent variable is definitely the solvent used. In the case of your first hypothesis though, I would say that the dependent variable is more how well the dyes separate. Rf value is one measure of this, so you can definitely use it, but it may also be how many different colors you can count on your strip.
Subsequently, question is, is an independent variable? Answer: An independent variable is exactly what it sounds like. It is a variable that stands alone and isn't changed by the other variables you are trying to measure. For example, someone's age might be an independent variable.
In this manner, what are the controlled variables in paper chromatography?
Dependent variable: - The distance that the pigments move, on the chromatography paper. Controlled variables: VARIABLE WAY OF CONTROL Temperature The experiment will be carried out in room temperature. Solvent volume In order to minimize uncertainty; the solvent will be added using a pipette.
What is the meaning of dependent variable?
Definitions. Dependent Variable. The variable that depends on other factors that are measured. These variables are expected to change as a result of an experimental manipulation of the independent variable or variables. It is the presumed effect.
