Drexel University
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All courses for Drexel University
- NUR102 ATI 1
- NURS 355 1
- NURS 420 NURS420 5
- NURS 495 NURS495 1
- NURS 548 NURS 548 4
- NURS 550 NURS550 52
- NURS 550 Comprehensive Note 1
- NURS 550 Danny Rivera Focused Note. Danny Rivera Focused Note 2
- NURS 550 FINAL EXAM REVIEW GUIDE 3
- NURS 550 Neurological _ Completed _ Shadow Health_objective 2
- NURS 550_-_Brian_Foster_Focused_Note 1
- NURS MISC NURS MISC 1
- NURS550 4
- NURS550 - Focused Note Brian Foster NURS550 - Focused Note Brian Foster 1
- NURS550 - Focused Note Esther Park NURS550 - Focused Note Esther Park 1
- NURS550 Focused Note Esther Park Nursing assignment 1
Latest notes & summaries Drexel University
Safety of HBr, Br2, Acetic Acid - correct answers all corrosive 
 
Br2 safety/characteristic - correct answers strong oxidizing agent 
-damage all membranes 
--volatile 
 
Clean up bromine with what? Quench bromine with what? 
Why does this quench? Why is this the agent we use in this lab? - correct answers Sodium bisulfite --strong reducing agent (counteracts effects of bromine being a strong oxidizing agent)--turns bromine into bromide. We use this agent in this lab b/c the bromine is water so...
Goals of separation - correct answers Recovery of product- catching the desired solute after separation 
Purity of product- how many and how much of various components 
 
Type of Chromatography - correct answers Partioning= liquid SP, liquid or gas MP 
Adsorption (Chemical sticking)- solid SP, liquid or gas MP 
Ion-Exchange- bonded anion(-) or action (+) SP, liquid MP 
Molecular Exclusion (size exclusion, gel permeation)-pores SP, liquid MP 
Affinity- Antigen/Antibody SP, liquid MP 
 
Solvent do...
carrier gas - correct answers mobile phase gas in gas chromatography 
 
cold trapping - correct answers splitless gas chromatography injection technique in which solute is condensed far below its boiling point in narrow band at the start of the column 
 
electron capture detector - correct answers gas chromatography detector that is particularly sensitive to compounds with halogen atoms, nitro groups, and other groups with high electron affinity 
 
flame ionization detector - correct answers A g...
NaH - correct answers SB/WN 
 
BDN - correct answers SB/WN 
 
DBU - correct answers SB/WN 
 
-OtBu - correct answers SB/WN (Bulky base) 
 
OH- - correct answers SB/SN
When are you allowed to enter the lab? (Choose all that apply) - correct answers When it is the official lab start time and your TA has arrived, When you are wearing goggles and a lab coat 
 
When must you wear safety goggles in lab? (Choose 1) - correct answers At all times, including when using computers in the instrument room 
 
What clothing is NOT allowed to be worn in lab? (Choose all that apply) - correct answers Sandals and other open toed shoes, Shorts 
 
Which of the following actions ...
carrier gas - correct answers MP gase in GC 
 
cold trapping - correct answers Splitless gas chromatography injection technique in which solute is condensed far below its boiling point in a narrow band at the start of the column. 
 
electron capture detector - correct answers gas chromatography detector that is particularly sensitive to compounds with halogen atoms, nitro groups, and other groups with high electron affinity 
 
flame ionization dectector - correct answers gas chromatography detec...
Fraction of Dissociation - correct answers the fraction of the acid in the conjugate base form (A-). 
[A-] / [A-]+[HA] or [A-]/F 
 
Fraction of Association - correct answers the fraction of the base in the conjugate acid form [BH+]. 
[BH+] / [BH+]+[B] or [BH+]/F 
 
Strong Acids - correct answers HClO4, H2SO4, HNO3, HCl, HI, HBr 
 
Strong Bases - correct answers LiOH, NaOH, KOH, RbOH, CsOH 
Ca(OH)2, Mg(OH)2, Ba(OH)2, Sr(OH)2 
 
What should I do if I have a dilute strong acid or base? (10e-6<F...
If you add more than a minimum amount of ethanol when recrysallizing, how does that affect % recovery - correct answers Less crystals, % recovery decreases 
 
List 2 features of the mp of an impure compound - correct answers -Lower 
-Broad range 
 
List 2 features of the mp of a pure compound - correct answers -correct mp 
-narrow range 
 
2 Features of a good solvent for recrystallization - correct answers -insoluble at colder temps 
-soluble at hot temps 
-All impurities soluble at all temper...
Alkanes - correct answers - Single bond 
-Chemical structure- CnH2n+2 
 
First four alkanes - correct answers -Methane(CH4) 
-Ethane (c2H6) 
-Propane(C3H8) 
-Butane(C4H10) 
 
Alkenes and Alkynes - correct answers -contains double bonds 
 
Alkynes - correct answers -contains triple bonds 
 
Alcohols - correct
the importance of TMS (CH3)4Si - correct answers -TMS is extremely shielded (more so than most organics) 
-1 sharp spike at 0, due to 12 equivalent protons 
-chem. Inert 
-low BP, easily removed 
 
Beer's Law - correct answers A=abc 
A=absorbance 
a=molar absorptivity 
b=path length 
c=concentration 
know how to find c= 
if λ=max then a is constant 
if a standardized cuvette is used b is constant 
if A, b, and a are known, then c can be calculated, but only if all those criteria are met! 
(A ...