Distillation and Reflux:
What is the purpose of carrying out a reflux?
2. Open Ended
30 seconds
1 pt
Distillation and Reflux:
Reflux- which glassware are needed in its set-up? (picture
3. Open Ended
30 seconds
1 pt
Distillation and Reflux:
Reflux- which glassware are needed in its set-up? (items)
4. Open Ended
30 seconds
1 pt
LLE:
As the two liquids separate, the solute compounds will redistribute into either of the layers based on the solubilities of the respective compounds. The efficiency of this transfer is based on a partition coefficient (K) which is defined as,
5. Open Ended
30 seconds
1 pt
IR:
Can you identify peaks corresponding to the different types of functional groups?
6. Open Ended
30 seconds
1 pt
LLE:
Solubility
7. Open Ended
30 seconds
1 pt
LLE:
What is the theory behind separating a mixture using liquid-liquid extraction?
8. Open Ended
30 seconds
1 pt
Distillation and Reflux:
What the purpose of carrying out a distillation?
9. Open Ended
30 seconds
1 pt
LLE:
How does ionization of a given molecule affect its distribution between the organic and aqueous layer?
10. Open Ended
30 seconds
1 pt
Distillation and Reflux:
Distillation- which glassware are needed in its set-up? (picture)
11. Open Ended
30 seconds
1 pt
Re-crystallization:
Why is the solution allowed to cool down to room temp rather than placing it immediately in an ice bath?
12. Open Ended
30 seconds
1 pt
Distillation and Reflux:
Distillation- which glassware are needed in its set-up? (chart)
13. Open Ended
30 seconds
1 pt
TLC:
What is the stationary and mobile phase in TLC?
14. Open Ended
30 seconds
1 pt
IR:
What type of information is obtained from an IR spectrum?
15. Open Ended
30 seconds
1 pt
TLC:
Can you calculate the Rf value of a given spot on a TLC plate?
16. Open Ended
30 seconds
1 pt
GC:
What is the stationary and mobile phase in GC?
17. Open Ended
30 seconds
1 pt
IR:
How/when can IR spectroscopy be useful in monitoring the progress of a given reaction?
18. Open Ended
30 seconds
1 pt
GC:
Given a mixture of molecules (minor and major products and their BP), which one would you expect to have the higher retention time? and which one would you expect to have the larger surface area under the peak?
19. Open Ended
30 seconds
1 pt
Re-crystallization:
What is the purpose of performing a re-crystallization?
20. Open Ended
30 seconds
1 pt
Re-crystallization:
What temperature should the extraction solvent be at and why?
21. Open Ended
30 seconds
1 pt
Rotavap:
What is the purpose of using a rotavap?
22. Open Ended
30 seconds
1 pt
Drying agents:
What is the purpose of drying agents?
23. Open Ended
30 seconds
1 pt
TLC:
Can you correlate the polarity of a given molecule based on its Rf value?
24. Open Ended
30 seconds
1 pt
Melting Point Analysis
25. Open Ended
30 seconds
1 pt
LLE:
The common glassware used to perform a liquid-liquid extraction is a