Paper Chromatography Lab Report

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Paper Chromatography Compare and Contrast
By: Karson Raak

Upon comparing our group’s paper chromatography samples with other groups, there are several things that become apparent. First, is a strip of red Sharpie from our group compared to a strip of red Sharpie from the other group, both of which were suspended in ethanol. In the interests of solubility, the red Sharpie was not as soluble as the other markers. Both tests exhibit the ink to not move much at all. Where it does move, it quickly becomes narrowed, indicating it is not very soluble. Our Rf factor was .40 centimeters, while the other groups was .58 centimeters. While these factors are not far away, they are not as average as others. This may have taken place due to the amount of …show more content…
This happens with a blue Vis- a- Vis marker and a green Sharpie. The Sharpie was suspended in ethanol, and the blue marker was suspended in water. Our test, the blue marker produced results similar to the others, while the Sharpie produced almost no result. The Rf factor of the Sharpie was .41 centimeters, with the ink only moving 1.9 centimeters, with the ethanol moving 4.6 centimeters. In our lab, the blue ink moved 4.4 centimeters, with the water moving 7.18 centimeters. This means that our ink was very soluble, while the Sharpie was not. The speed of separation was very quick for the marker, but incredibly slow for the Sharpie. Finally, was the comparison between the same marker in the same solution, a Vis- a- Vis marker suspended in water. These inks after undergoing paper chromatography held the same shades but different vertical lengths. The Rf factor of the other group was .62 centimeters, while ours was .47 centimeters. In the other group, the ink traveled a total of 4.7 centimeters and the water traveled 7.6 centimeters. In our experiment the ink traveled 2.7 centimeters and the water traveled 5.8. This shows the solubility was greater in these trials. It also points out how the speed of separation was much
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