Question

You run a chromatography experiment on a sample of ink and find there are four separate colors in the ink. You measure the distances as follows:

Green = 1.50 cm,
Yellow = 2.25 cm,
Red = 3.50 cm,
Blue = 4.25 cm.
The solvent traveled a distance of 5.00 cm. What is the Rf value for green?

Answer 1

The Rf value for green in the chromatography experiment is calculated by dividing the distance traveled by the substance (1.50 cm) by the distance traveled by the solvent (5.00 cm), resulting in an Rf value of 0.30.

Step-by-step explanation:

To calculate the Rf value for green, we need to divide the distance the green ink traveled by the distance the solvent traveled. In this case, the green ink traveled 1.50 cm, and the solvent traveled 5.00 cm. So, the Rf value for green is 0.30.The Rf value, or retention factor, is a ratio used in chromatography that represents how far a compound travels relative to the solvent front. To calculate the Rf value for green ink, you use the formula Rf = (distance traveled by the substance) / (distance traveled by the solvent). So, for green, it would be Rf = (1.50 cm) / (5.00 cm) = 0.30.