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3. A student performs a separation by TLC on a silica get plate that results in three spots. A red spot is measured 23 mm away from the original sample spot, a blue spot is 42 mm away, and a yellow spot is 49 mm away. The distance from the original spot to where the solvent stopped is 55 mm. a) Calculate the Re value for each component in the mixture. (Show your work and report the correct number of significant figures.)

3. A student performs a separation by TLC on a silica get plate that results in three spots. A red spot is measured 23 mm away from the original sample spot, a blue spot is 42 mm away, and a yellow spot is 49 mm away. The distance from the original spot to where the solvent stopped is 55 mm. a) Calculate the Re value for each component in the mixture. (Show your work and report the correct number of significant figures.)

Appl Of Ms Excel In Analytical Chemistry
Appl Of Ms Excel In Analytical Chemistry
2nd Edition
ISBN:9781285686691
Author:Crouch
Publisher:Crouch
Chapter4: Least-squares And Calibration Methods
Section: Chapter Questions
Problem 3P
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22 Experiment 2 Chromatography 32. A student properly sets up a column chromatography experiment. Although the mixture is soluble in the mobile phase, the sample appears "stuck" at the top of the column and will not elute regardless of how much solvent is applied. What could be the cause of this prob- lem and what could the student do to try and achieve a successful separation? NA disolves in #20 Salt No maybe the compound NASI is to much an the solvent being #20 is to little Vodafo 3. A student performs a separation by TLC on a silica get plate that results in three spots. A red spot is measured 23 mm away from the original sample spot, a blue spot is 42 mm away, and a yellow spot is 49 mm away. The distance from the original spot to where the solvent stopped is 55 mm. a) Calculate the Re value for each component in the mixture. (Show your work and report the correct number of significant figures.) highest polarity. Explain your answer. b) The silica gel plate is polar. Rank the three components in the mixture from lowest to
Transcribed Image Text:22 Experiment 2 Chromatography 32. A student properly sets up a column chromatography experiment. Although the mixture is soluble in the mobile phase, the sample appears "stuck" at the top of the column and will not elute regardless of how much solvent is applied. What could be the cause of this prob- lem and what could the student do to try and achieve a successful separation? NA disolves in #20 Salt No maybe the compound NASI is to much an the solvent being #20 is to little Vodafo 3. A student performs a separation by TLC on a silica get plate that results in three spots. A red spot is measured 23 mm away from the original sample spot, a blue spot is 42 mm away, and a yellow spot is 49 mm away. The distance from the original spot to where the solvent stopped is 55 mm. a) Calculate the Re value for each component in the mixture. (Show your work and report the correct number of significant figures.) highest polarity. Explain your answer. b) The silica gel plate is polar. Rank the three components in the mixture from lowest to
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