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Study sets matching "ochem 238"

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Study sets matching "ochem 238"

29 terms
Ochem 238
CH3-X + Mg(0)
Ketone + R-MgBr
Ester + R-MgBr (2equiv)
CH3CH2CH2-X + Dimethyl Cupric
CH3-MgX
R-Alcohol
R-Alcohol-R
CH3CH2CH2CH3
CH3-X + Mg(0)
CH3-MgX
Ketone + R-MgBr
R-Alcohol
38 terms
OChem 238 Midterm 1
~1
~1.2
~1.6
2-3
methyl
methylene
methine
methylene next to amine
~1
methyl
~1.2
methylene
117 terms
OCHEM 238 Final
How can a student know how much drying…
Occasionally an ice bath will need to…
In what case should a heating mantle b…
Small fire contained completely with a…
If the drying agent swirls, the student has added enough. If…
Pour salt water into the beaker of ice.... Add sodium chloride t…
When eating a round bottom flask.
Cover the flame with a watch glass or a hard-back book.
How can a student know how much drying…
If the drying agent swirls, the student has added enough. If…
Occasionally an ice bath will need to…
Pour salt water into the beaker of ice.... Add sodium chloride t…
12 terms
Ochem 238 Lab final
In the nitration of methyl benzoate, w…
What is the role of the ether (THF) in…
A catalytic amount of mineral acid in…
Fisher esterification is...
addition of the electrophile to the benzene ring.
Electron pairs on the oxygen solubilize the magnesium of the…
protonates the carbonyl oxygen of the carboxylic acid, genera…
reversible and acid catalyzed
In the nitration of methyl benzoate, w…
addition of the electrophile to the benzene ring.
What is the role of the ether (THF) in…
Electron pairs on the oxygen solubilize the magnesium of the…
12 terms
OCHEM 238 Exam 4
Ribs
Are
X'tra
Lean
Ribose (NO L -OHs)
Arabinose (2 is L -OH)
Xylose (3 is L -OH)
Lyzose (2,3 is L -OH)
Ribs
Ribose (NO L -OHs)
Are
Arabinose (2 is L -OH)
75 terms
Chem 238 ochem practice
Which of the following is a suitable r…
In the aldol condensation, the base:... a…
What type of bond links amino acids to…
Ammonolysis of benzoyl chloride with c…
b. Ag(NH3)2+ OH-
d. abstracts the hydrogen alpha to the carbonyl
c. an amide bond
b. benzamide
Which of the following is a suitable r…
b. Ag(NH3)2+ OH-
In the aldol condensation, the base:... a…
d. abstracts the hydrogen alpha to the carbonyl
41 terms
OCHEM 238 LAB FINAL: spring 2016
1. Which of the following statements i…
3. The Grignard reagent, n‐butylmagnes…
4. The analogy between a chemical bond…
5. Why is UVC sunlight less dangerous…
d. Esters, acid chlorides, ethers and amides are all derivati…
e. carbon nucleophile
d. quantum mechanics
a. The UVC radiation is absorbed by ozone in the earth's atmo…
1. Which of the following statements i…
d. Esters, acid chlorides, ethers and amides are all derivati…
3. The Grignard reagent, n‐butylmagnes…
e. carbon nucleophile
33 terms
OCHEM 238 FINAL EXAM: spring 2015
The solution into which the fabric was…
Which test results as positive for ald…
In the Fischer esterification experime…
Excess ethyl amine is needed in the sy…
c. Clear
a. the Schiff's reagent
...
b. neutralize the acid formed by the substitution
The solution into which the fabric was…
c. Clear
Which test results as positive for ald…
a. the Schiff's reagent
121 terms
CHEM 238 LAB review questions
The hydrolysis of esters can be done b…
Which of the following chemicals will…
What is the intermediate formed during…
The correct order of decreasing reacti…
c. The carboxylic acid will be deprotonated by the base and w…
e. diethyl ether
d. an enolate
e. acid chloride > ester > amide
The hydrolysis of esters can be done b…
c. The carboxylic acid will be deprotonated by the base and w…
Which of the following chemicals will…
e. diethyl ether
139 terms
CHEM 238 Final
Which of the following is true of lab…
Which of the following statements are…
Methods and Procedures for Weigh Boats
How can a student know how much drying…
Lab reports are to be placed in one of the organic labs repor…
Acquiring answers for any assigned work from any unauthorized…
In some cases, the same weigh boat (labelled with the compoun…
If the drying agent swirls, the student has added enough. If…
Which of the following is true of lab…
Lab reports are to be placed in one of the organic labs repor…
Which of the following statements are…
Acquiring answers for any assigned work from any unauthorized…
93 terms
Chem 238 Lab Final
Safety... What statement is correct about…
Safety... If chemicals get into your eyes…
Safety... If a strong acid comes into con…
UV Sunscreens... SPF refers to product ef…
D
A
B
B
Safety... What statement is correct about…
D
Safety... If chemicals get into your eyes…
A
55 terms
CHEM 228 238 exam 2 reactions
Friedel-Crafts Alkylation
Friedel-Crafts Alkylation
Friedel-Crafts Alkylation ... LIMITATIONS
Friedel-Crafts Acylation
Friedel-Crafts Alkylation
Friedel-Crafts Alkylation
52 terms
OCHEM Lab Final
What are the minimum and maximum value…
Describe UVA waves
Describe UVB waves
Describe UVC waves
290 nm to 315 nm
Lowest energy wave; causes mild skin aging
causes skin cancer
Highest energy wave; totally absorbed by Earth's ozone layer;…
What are the minimum and maximum value…
290 nm to 315 nm
Describe UVA waves
Lowest energy wave; causes mild skin aging
36 terms
CHEM 238 LAB FINAL: fall 2015
Which of the following components of t…
TLC is a technique easily used for... a.…
Using semi- empirical calculations wit…
The reaction of C6H5MgBr with water pr…
d. 1, 2 and 3
e. a and d
c. II and III
a. C6H6
Which of the following components of t…
d. 1, 2 and 3
TLC is a technique easily used for... a.…
e. a and d
154 terms
Chem 238 Lab Final SPRING 2014
Safety... What statement is correct about…
Safety... If chemicals get into your eyes…
Safety... If a strong acid comes into con…
UV Sunscreens... SPF refers to product ef…
D
A
B
B
Safety... What statement is correct about…
D
Safety... If chemicals get into your eyes…
A
64 terms
chem 238 final
UVC min and max wavelengths
levels of UV rays
as the concentration of the solution i…
what does the value of the molar coeff…
100-290
UVA lowest skin aging... UVB skin cancer... UVC lethal blocked by o…
increases
the strength with which a solution of the sample absorbs ligh…
UVC min and max wavelengths
100-290
levels of UV rays
UVA lowest skin aging... UVB skin cancer... UVC lethal blocked by o…
139 terms
CHEM 238 Final (c)
Which of the following is true of lab…
Which of the following statements are…
Methods and Procedures for Weigh Boats
How can a student know how much drying…
Lab reports are to be placed in one of the organic labs repor…
Acquiring answers for any assigned work from any unauthorized…
In some cases, the same weigh boat (labelled with the compoun…
If the drying agent swirls, the student has added enough. If…
Which of the following is true of lab…
Lab reports are to be placed in one of the organic labs repor…
Which of the following statements are…
Acquiring answers for any assigned work from any unauthorized…
270 terms
CHEM 238 O Chem Lab (c)
What is Beer's Law?
TLC of the crude product from the nitr…
What is the role of ether (THF) in the…
Ammonolysis of benzoyl chloride with c…
A=ELC
minor products were produced along with the major product
Electron pairs on oxygen solubilize the magnesium of Grignard…
benzamide
What is Beer's Law?
A=ELC
TLC of the crude product from the nitr…
minor products were produced along with the major product
14 terms
Organic Chemistry Lab I (CHEM 237) Experiment 14: Oxidation of a Secondary Alcohol with Sodium Hypochlorite
Identify if the following alcohols can…
Which of the following are commonly us…
Compared to dichromate oxidizing agent…
Sodium hypochlorite and glacial acetic…
chromic acid & sodium dichromate
safer, less expensive and environmentally friendly
Add sodium bisulfite, NaHSO3.
Identify if the following alcohols can…
Which of the following are commonly us…
chromic acid & sodium dichromate
27 terms
Print out Ochem questions
A condensation polymerization produces…
Which organic compound is classified a…
For ethylene: C2H2, what is the total…
Which nuclide is a radioisotope used i…
H20
ethanol
6
Carbon 14
A condensation polymerization produces…
H20
Which organic compound is classified a…
ethanol
8 terms
Recrystallization of Acetanilide Set A
There are four major methods of purifi…
When is recrystallization not a suitab…
None of the following molecules displa…
Identify the apparatus used in a vacuu…
Spectroscopy... The four most common laboratory techniques for…
When the organic material is a liquid instead of a solid.... Re…
2-naphthol... 2-naphthol has the lowest ratio of hydrogen bondi…
Filter paper is placed in the Buchner funnel to collect all t…
There are four major methods of purifi…
Spectroscopy... The four most common laboratory techniques for…
When is recrystallization not a suitab…
When the organic material is a liquid instead of a solid.... Re…
59 terms
Organic Chemistry Lab Final
In a micro scale distillation, the rat…
What two pieces of information can be…
If you receive a minor burn from a hot…
Comparison of simple vs fractional dis…
20 to 30 seconds
The boiling point of each component, and the ratio of the amo…
Immediately place the burned tissue under cold water
Temperature vs volume
In a micro scale distillation, the rat…
20 to 30 seconds
What two pieces of information can be…
The boiling point of each component, and the ratio of the amo…
75 terms
Biochem Final
What are the basic chemical steps/mech…
What are the Macromolecular Modular co…
What are the roles and functions of CID?
How do partners bind?
1) Adenylation - activates AA (ATP)... 2) Thiolation domain - pe…
Converging pathways of spumigin and aeruginosin (4-methylprol…
Chemical inducers of dimerization... They are usually immunosupp…
First CID will bind to its target (FKBP) and the "partner" (C…
What are the basic chemical steps/mech…
1) Adenylation - activates AA (ATP)... 2) Thiolation domain - pe…
What are the Macromolecular Modular co…
Converging pathways of spumigin and aeruginosin (4-methylprol…
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