Friday
April 18, 2014

Homework Help: Chem again

Posted by Natasha on Monday, March 8, 2010 at 11:13pm.

The solubility of Acetanilide in hot and cold water is:
Temperature.........Solubility in 100ml H20
100C....................5.5g
0C........................0.53g

What is the maximum recovery if 5.0g of acetanilide is recrystallized from 100mL of water?

My ans:
So this is what I understand, when heated, all of acetanilide is dissolved in water, this is then filtered and allowed to cool. Then it is kept in an ice bath, thus the temp is 0C and acetanilide is no longer soluble.
So the final max % recovery should be:

(5.0-0.53)/5.5 x 100%

And hopefully this is correct?

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