Problem: Chromatography is a simple, but reliable, method for separating a mixture into its constituent substances. Suppose you are using chromatography to separate a mixture of two substances.Can you propose a means of quantifying how good or how poor the separation is?

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We are asked to propose a means of quantifying how good or how poor the separation is.


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Chromatography is a simple, but reliable, method for separating a mixture into its constituent substances. Suppose you are using chromatography to separate a mixture of two substances.

The figure shows a chromatographic method for separating a mixture of two substances. There are three beakers containing a piece of paper partially immersed in a liquid. A black spot containing the mixture is arranged above the wetted part of the paper in the first (from left to right) beaker. The mixture begins separating in the second beaker. Half of the paper is wetted. The black spot begins changing the color. The mixture is separated in the third beaker. The whole paper is wetted. The black spot transforms into a line with sites of different colors.

Can you propose a means of quantifying how good or how poor the separation is?

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Our tutors have indicated that to solve this problem you will need to apply the Chromatography concept. You can view video lessons to learn Chromatography. Or if you need more Chromatography practice, you can also practice Chromatography practice problems.