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April 2017, Week 3

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Subject:
FW: Hi, here's your MCAT Question of the Day!
From:
Kemile A Jackson <[log in to unmask]>
Date:
Tue, 18 Apr 2017 14:11:47 +0000
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[MCAT Question of the Day, Click Display Images To See]


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Recrystallization and You
Which statement below about recrystallization is NOT correct?

A. The method relies on the fact that solids are more soluble in a cold solvent than they are in the same amount of hot solvent.

B. Precipitation is initiated by adding a seed crystal of the compound being purified.

C. Scratching the side of the vessel at the air/solution interface can induce crystal nucleatio.

D. Slowly cooling the solution promotes precipitation of the compound.

To see the solution, visit the following link:
http://mcatquestionoftheday.com/chemistry/recrystallization-and-you/<http://mcatquestionoftheday.us4.list-manage.com/track/click?u=d3318065969b7c08ead5d4c4d&id=031b3716a6&e=61d7ba7392>

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