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The goal of this experiment is to remove the soluble (Is) and insoluble (Ii) impurities from crude acetanilide.
The impurities are colorless, not pink and blue :)
Click on each drop-down menu and read instructions...
HOW DOES THIS SITE WORK?
HOW DOES THIS SITE WORK?
On the pages that follow, read the captions, check out the photos, and watch videos
No sound on videos, aside from background music, for accessibility reasons
Record observations and product loss
Click the blue or white buttons to move on to the next step
Sometimes, you'll be presented with choices. Feel free to make mistakes.
There are reductions to your mass recovery or melting point to reflect how certain steps impact the results, but there are no grade penalties for making the "wrong" choice.
Click on the 'Home' menu on the top right to jump back or forward to main parts of the lab
LEARNING OBJECTIVES
LEARNING OBJECTIVES
Understand principles behind purification and recrystallization
Critical analysis of recrystallization technique
Analyze data to assess purity and success of experiment
Understand the role H-bonding plays in dissolving, precipitation, and physical properties (melting point and range)
Predict sources of intrinsic error and understand their effects on results
Got it? Great! Let's go to lab...
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