A. blue hair dye sample was 2.6cm from the pencil line. The water travelled 6.3cm, calculate the Rf. Only type the answer to 2 decimal places.

B. The Rf of purple is 0.58. The solvent travelled 14cm. What distance did the purple ink travel?

C. The Rf of orange is 0.37. The solvent travelled 15.6cm. What distance did the orange ink travel?

**Answer**

A. Rf (Retention Factor) is a measure of the distance a substance has travelled in relation to the distance traveled by the solvent (in this case, the water). To calculate Rf, you divide the distance traveled by the substance by the distance traveled by the solvent. So, in this case, the Rf would be 2.6cm ÷ 6.3cm = 0.24.

B. To find the distance traveled by the purple dye, you multiply the Rf by the distance traveled by the solvent. So, in this case, the distance traveled by the purple dye would be 0.58 x 14cm = 8.25cm.

C. To find the distance traveled by the orange dye, you multiply the Rf by the distance traveled by the solvent. So, in this case, the distance traveled by the orange dye would be 0.37 x 15.6cm = 5.76cm.

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