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May 27, 2015

Homework Help: CHEMISTRY

Posted by Hannah on Sunday, August 19, 2012 at 3:13pm.

In TLC, 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.


THERE IS MORE THAN ONE ANSWER CORRECT HERE. I KNOW IT IS D, BUT THERE IS ONE MORE CORRECT ANSWER. WHAT IS IT? THANKS!

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