February 22, 2017

Homework Help: Chemistry

Posted by JEN on Saturday, August 18, 2012 at 5:55pm.

Why do you spot multiple times? Select one or more correct answers.
A. To fill the capillary almost instantly by capillary action.
B. So the developing chamber solvent does not evaporate.
C. The higher compound concentration facilitates visualization.
D. To acheive a high concentration of sample in a small spot.

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