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Pre-Lab Questions A food sample contains three unknown color pigments with the codes 0, Y, and G. After a paper chromatography experiment separates the pigments in the food sample, O is calculated to have the highest Rf value while G has the lowest Rf value. a. Which pigment has the greatest intermolecular interactions with the stationary phase? b. Which pigment has the greatest intermolecular interactions with the mobile phase? 1. 2. From the experiment in Question 1, the following data were obtained: 5.5 cm Distance traveled by spot O Distance traveled by spot Y Distance traveled by spot G Distance traveled by solvent front 4.0 cm 3.0 cm 6.0 cm Calculate the retention factor (Rr) for each spot.

Pre-Lab Questions A food sample contains three unknown color pigments with the codes 0, Y, and G. After a paper chromatography experiment separates the pigments in the food sample, O is calculated to have the highest Rf value while G has the lowest Rf value. a. Which pigment has the greatest intermolecular interactions with the stationary phase? b. Which pigment has the greatest intermolecular interactions with the mobile phase? 1. 2. From the experiment in Question 1, the following data were obtained: 5.5 cm Distance traveled by spot O Distance traveled by spot Y Distance traveled by spot G Distance traveled by solvent front 4.0 cm 3.0 cm 6.0 cm Calculate the retention factor (Rr) for each spot.

Chemistry & Chemical Reactivity
Chemistry & Chemical Reactivity
10th Edition
ISBN:9781337399074
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter11: Intermolecular Forces And Liquids
Section11.6: Properties Of Liquids
Problem 1.1ACP
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Pre-Lab Questions A food sample contains three unknown color pigments with the codes 0, Y, and G. After a paper chromatography experiment separates the pigments in the food sample, O is calculated to have the highest Rf value while G has the lowest Rf value. a. Which pigment has the greatest intermolecular interactions with the stationary phase? b. Which pigment has the greatest intermolecular interactions with the mobile phase? 1. 2. From the experiment in Question 1, the following data were obtained: 5.5 cm Distance traveled by spot O Distance traveled by spot Y Distance traveled by spot G Distance traveled by solvent front 4.0 cm 3.0 cm 6.0 cm Calculate the retention factor (Rr) for each spot.
Transcribed Image Text:Pre-Lab Questions A food sample contains three unknown color pigments with the codes 0, Y, and G. After a paper chromatography experiment separates the pigments in the food sample, O is calculated to have the highest Rf value while G has the lowest Rf value. a. Which pigment has the greatest intermolecular interactions with the stationary phase? b. Which pigment has the greatest intermolecular interactions with the mobile phase? 1. 2. From the experiment in Question 1, the following data were obtained: 5.5 cm Distance traveled by spot O Distance traveled by spot Y Distance traveled by spot G Distance traveled by solvent front 4.0 cm 3.0 cm 6.0 cm Calculate the retention factor (Rr) for each spot.
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