3. Diazepam tablets are supplied in 2-, 5-, and 10-mg increments. Suppose several tablets are received in a laboratory as evidence and using the Physician's Desk Reference, an analyst can tentatively identify them as Valium, 10mg. Suppose further that you learn that the tablets also contain anhydrous lactose, starches, dyes, and calcium stearate. Describe a method for isolating the active ingredient from fillers, using an LLE scheme. Justify and explain each step of the method. 4. Quinine (C20 H24N2O2) is a dibasic molecule with pKa's of 5.07 and 9.7. It is encountered as a diluent (cutting agent) for heroin. To extract quinine from an aqueous solution, what pH should be used and why?
3. Diazepam tablets are supplied in 2-, 5-, and 10-mg increments. Suppose several tablets are received in a laboratory as evidence and using the Physician's Desk Reference, an analyst can tentatively identify them as Valium, 10mg. Suppose further that you learn that the tablets also contain anhydrous lactose, starches, dyes, and calcium stearate. Describe a method for isolating the active ingredient from fillers, using an LLE scheme. Justify and explain each step of the method. 4. Quinine (C20 H24N2O2) is a dibasic molecule with pKa's of 5.07 and 9.7. It is encountered as a diluent (cutting agent) for heroin. To extract quinine from an aqueous solution, what pH should be used and why?
Organic Chemistry
8th Edition
ISBN:9781305580350
Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote
Publisher:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote
Chapter23: Amines
Section: Chapter Questions
Problem 23.64P
Related questions
Question
None
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 2 steps with 1 images
Recommended textbooks for you
Organic Chemistry
Chemistry
ISBN:
9781305580350
Author:
William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote
Publisher:
Cengage Learning
Introduction to General, Organic and Biochemistry
Chemistry
ISBN:
9781285869759
Author:
Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres
Publisher:
Cengage Learning
Organic Chemistry
Chemistry
ISBN:
9781305580350
Author:
William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote
Publisher:
Cengage Learning
Introduction to General, Organic and Biochemistry
Chemistry
ISBN:
9781285869759
Author:
Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres
Publisher:
Cengage Learning
Chemistry & Chemical Reactivity
Chemistry
ISBN:
9781337399074
Author:
John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:
Cengage Learning
Chemistry & Chemical Reactivity
Chemistry
ISBN:
9781133949640
Author:
John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:
Cengage Learning
Macroscale and Microscale Organic Experiments
Chemistry
ISBN:
9781305577190
Author:
Kenneth L. Williamson, Katherine M. Masters
Publisher:
Brooks Cole