CH-378
Chromatography and Rf values
Chemistry · Secondary 3 · Easy · Chromatography and Rf values
A student separates a mixture of three food dyes using paper chromatography. The solvent front travels 7.0 cm from the starting line. One dye moves 2.8 cm from the starting line. What is the Rf value of this dye?
- 0.40
- 0.25
- 2.5
- 4.0
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