GOAL: separate the mixture of active ingredients found in Excedrin: ASP (a carboxylic acid), ACE (a phenol), and CAF (an amine), through acid-base extraction.
Understand principles behind acid-base extraction
Critical analysis of extraction techniques
Analyze data to assess purity and success of experiment
Understand the role of functional groups and acidity / basicity on separation
Predict sources of error and understand their effects on results
Introduction to EXP 2!
Fun with the ModelAR app! Videos below can be played up to 4x...
Aspirin
Acetaminophen
Caffeine
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
Click the buttons to move on to the next step
Sometimes, you'll be presented with choices.
Feel free to make mistakes :)
You're not graded on recovery!
Click on the menu on the top to jump back or forward to other parts of the lab
TAs assign each pair a mass of Excedrin.
Use this to calculate theoretical recoveries of ASP, ACE, and CAF.
Subtract total product loss from the appropriate theoretical recovery (ASP, ACE, CAF, or all three)
Attend / watch lab lecture and upload Exp 2 Class Notes
Exp 2 Pre-lab quiz - take on Canvas before section
Complete the Exp 2 Worksheet during lab
Exp 2 Lab Report - due one week after experimentation