Answer:
0.94
Explanation:
The Rf value in chromatography is the ratio of the distance traveled by a given component and that of the solvent front in a mobile phase.
Rf = distance traveled by component/distance traveled by solvent front.
In this case, distance traveled by component = 9.1 cm. distance traveled by solvent front = 9.7 cm.
Rf = 9.1/9.7 = 0.94
Hence, the Rf value is 0.94.
