Questions
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A student runs a TLC of a red pigment using a silica plate an ethyl acetate as the solvent. The red pigment was found to move 2.3 cm and the solvent front was measured to be 5.5 cm. What is the Rf of the red pigment?
Options
A.a. 0.42
B.b. 0.52
C.c. 0.55
D.d. 0.23
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Step-by-Step Analysis
The question asks for the Rf value of the red pigment in a TLC run, where Rf is defined as the distance traveled by the compound divided by the distance traveled by the solvent front.
Option a: 0.42. If you compute 2.3 cm divided by 5.5 cm, you get 2.3 ÷ 5.5 ≈ 0......Login to view full explanationLog in for full answers
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