Carotenes Xanthophylls Chlorophyll a Chlorophyll b now what happens if we change put water instead of petroleum ether/acetone Based on the polarity/non-polarity of water and the four pigments, which of the following is the best prediction of the results you would obtain if you ran the experiment with water as the solvent? Justify your choice. ? The pigments would travel up the paper and separate, but in the opposite order (carotenes at the bottom, chlorophylls at the top). The results would be the same as in the lab (no change). The pigments will dissolve in
experiment was about spinach pigments in petroleum ether/acetone solvent
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Carotenes |
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Xanthophylls |
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Chlorophyll a |
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Chlorophyll b |
now what happens if we change put water instead of petroleum ether/acetone
Based on the polarity/non-polarity of water and the four pigments, which of the following is the best prediction of the results you would obtain if you ran the experiment with water as the solvent? Justify your choice. ?
- The pigments would travel up the paper and separate, but in the opposite order (carotenes at the bottom, chlorophylls at the top).
- The results would be the same as in the lab (no change).
- The pigments will dissolve in the solvent, leaving green liquid in the jar.
- The pigments will remain at the origin, not move up the paper or dissolve in the solvent.
my response is this could you verify if i am right or wrong
I believe option A :The pigments would travel up the paper and separate, but in the opposite order (carotenes at the bottom, chlorophylls at the top) is the correct answer because water is a polar solvent, and the pigments have varying degrees of polarity. Chlorophylls, which are more polar, would have a stronger affinity for the polar water and would thus travel a shorter distance up the paper. Carotenes, which are less polar, would have a weaker affinity for the polar water and would thus travel a greater distance up the paper.
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