state/hexane, the sample showed a single spot at 3.4 cm (relative to vent had risen to 7.1 cm (relative to the initial point). A sample whid compound was analyzed by TLC and showed two spots after elu tem. The solvent height for this plate was 6.5 cm (relative to the in re located at 3.6 cm and 5.2 cm (relative to the initial point). Can eith compound A? Explain. lude a discussion of the R, for each spot.

Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
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A standard sample of compound A was placed on a silica TLC plate. After elution in 30/70 ethyl
acetate/hexane, the sample showed a single spot at 3.4 cm (relative to the initial point) after the
solvent had risen to 7.1 cm (relative to the initial point). A sample which was thought to contain
this compound was analyzed by TLC and showed two spots after elution in the same solvent
system. The solvent height for this plate was 6.5 cm (relative to the initial point) and the spots
were located at 3.6 cm and 5.2 cm (relative to the initial point). Can either of these spots possibly
be compound A? Explain.
Include a discussion of the R, for each spot.
Transcribed Image Text:A standard sample of compound A was placed on a silica TLC plate. After elution in 30/70 ethyl acetate/hexane, the sample showed a single spot at 3.4 cm (relative to the initial point) after the solvent had risen to 7.1 cm (relative to the initial point). A sample which was thought to contain this compound was analyzed by TLC and showed two spots after elution in the same solvent system. The solvent height for this plate was 6.5 cm (relative to the initial point) and the spots were located at 3.6 cm and 5.2 cm (relative to the initial point). Can either of these spots possibly be compound A? Explain. Include a discussion of the R, for each spot.
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