A student investigated purple ink using paper chromatography.
The purple ink contains 72% red dye and 28% blue dye. Determine the simplest whole-number ratio of red dye : blue dye in the purple ink.
In the chromatogram, the student made the following measurements:
Calculate the RfR_{\text{f}}Rf value of the red dye using the equation:
Rf=distance moved by dyedistance moved by solvent R_{\text{f}} = \frac{\text{distance moved by dye}}{\text{distance moved by solvent}} Rf=distance moved by solventdistance moved by dyeUnder the same experimental conditions, if the student used a different purple ink formulation containing 60% red dye and 40% blue dye, state what would happen to the RfR_{\text{f}}Rf value of the red dye.