CH-1363
Chromatography and Rf values
Chemistry · Secondary 4 · Medium · Chromatography and Rf values
A student carries out paper chromatography on a black ink and obtains two spots, red and yellow. The solvent front has moved 8.0 cm. The red spot has moved 4.0 cm and the yellow spot 6.0 cm.
What is the Rf value of the yellow dye?
What is the Rf value of the yellow dye?
- 0.25
- 0.50
- 0.75
- 1.33
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