Asked Nov 29, 2019

The solvent moves 3 cm in about 10 minutes. Why shouldn't the experiment be stopped at that time instead of waiting 75 minutes for the solvent to move 10 cm?

Question 3 options:

More time increases the concentration of mixture components.


More time allows for better separation of components in a mixture.


More time decreases the concentration of mixture components.


Instructors don't like students to be finishing their labs too quickly.




Expert Answer

Step 1

In chromatography, the solvent along with components moves through the chromatographic sheet very slowly.  It requires enough time to move for proper and...

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