Nucleophile - Study guides, Class notes & Summaries
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CHEM 230 Final Exam Questions With Complete Solution
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IR Spectra correct answer: -Absorption of radiation causes vibrational excitation of functional groups *making it easy to ID functional groups* 
 
*0-5000cm-1* 
 
H NMR Spectra correct answer: *0-12ppm* 
 
C NMR Spectra correct answer: *0-200ppm* 
 
Mass Spec correct answer: -Used to measure the molecular weight (mass) of the compound. 
 
Alkyne Reactions correct answer: *1* Alkyne + H2/Pd &C = Alkene 
*2* Alkyne + H2/Lindlav Cat.= Cis Alkene 
*3* Alkyne + Li or Na/Liquid NH3= Trans Alkene ...
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CHEM 129 EXAM 3 Questions With 100% Correct Answers
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CHEM 129 EXAM 3 Questions With 100% 
Correct Answers 
Acids and bases are usually demoted as strong or weak, what's the difference? - answer- 
Strong acids and bases - reaction with water is 
approximately 100% 
- Weak acids and bases - reaction with water is much less than 100% 
What does acid and base strength not dictate? - answerAcid or base strength is not a measure 
of concentration 
What are some examples of strong acids? - answerHNO3, HCl, H2SO4 and HClO4 are 
strong acids 
What are ele...
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BCH210 MIDTERM| 213 QUESTIONS| WITH COMPLETE SOLUTIONS
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van der Waals correct answer: -weakest (short lives) but lots could strengthen the bond 
-furthest distance 
-form as a result of hydrophobic interactions 
-strength depends on the size of the atoms and the distance between them 
-cannot be closer than the Van der Waals contact distance or else positively charged nuclei will repel each other (energy= 0) 
 
Proteins correct answer: main action molecule of the cell (Most chemical processes of the body are carried out by proteins) 
-classified in...
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CHM 242 Exam 2 || A Verified A+ Pass.
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EAS: friedel-crafts alkylation correct answers -the friedel-crafts alkylation makes it possible for us to install an alkyl group onto an aromatic ting 
-this is accomplished by reacting an alkyl halide with a lewis acid to generate a species that is electrophilic enough to react with benzene 
-good at forming carbon-carbon bonds 
 
EAS: Friedel-Crafts alkylation-reagents correct answers -alkyl halides are generally electrophilic but no electrophilic enough to attract the benzene ring 
-it was fo...
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UMICH CHEM 210 - Exam #3 - Reaction Mechanisms 100% Correct.
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SN1 Reaction - ANSWER- Unimolecular nucleophilic substitution 
- 2 steps 
- Starting with enantiomerically pure product tends to result in some degree of racemization 
- Retention AND inversion at stereocenter (R and S) 
- 1 nucleophile is replaced by another nucleophile 
- Carbocation INTERMEDIATE forms 
- Rate is dependent only on substrate concentration 
 
1. LG leaves, forming a carbocation 
2. Nucleophile attacks the carbocation, forming the product 
 
SN2 Reaction - ANSWER- Bimolecular nuc...
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CHE 230 Final Questions With Complete Solutions.
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strong base, weak nucleophile correct answer: NaH 
 
strong base, weak nucleophile correct answer: DBN 
 
strong base, weak nucleophile correct answer: DBU 
 
strong base, strong nucleophile correct answer: HO- 
 
strong base, strong nucleophile correct answer: MeO- 
 
strong base, strong nucleophile correct answer: EtO- 
 
weak base, strong nucleophile correct answer: I- 
 
weak base, strong nucleophile correct answer: Br- 
 
weak base, strong nucleophile correct answer: Cl- 
 
weak ba...
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ACS Organic Chemistry Exam Study Questions and Answers 2024 Graded A
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What is the general formula for a carbohydrate? - Cx(H2O)y 
 
How do you determine the number of stereoisomers for a given carbohydrate? - 2^n where n= number of stereocenters 
 
Distinguish between the D and L designations for carbohydrates. - In the L form the hydroxy group is on the bottom left closest to the CH2OH group in the frame of a Fischer projection 
In the D form the OH is on the bottom right 
 
What are anomers? - Diastereomers formed by the cyclization of carbohydrates (*note they ...
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Chem 210 Exam 3 Questions and Correct Answers, With Complete Solution.
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Chem 210 Exam 3 Questions and Correct Answers, With Complete Solution. 
 
what face of the pi bond can EAR occur from? 
either face 
how many products do EARs on an alkene form? 
4 stereoisomeric products 
Brainpower 
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in a substitution rxn, what does H-O act as? 
nucleophile and replaces LG 
in an elimination rxn, what does H-O acts as? 
base and abstracts BH atom 
what is a requirement for elimination rxns? 
beta hydrogen 
what is a requirement for substitution rxns? 
leaving group 
...
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Chem 210 Exam 3 Questions and Correct Answers, With Complete Solution
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Chem 210 Exam 3 Questions and Correct Answers, With Complete Solution. 
 
what face of the pi bond can EAR occur from? 
either face 
how many products do EARs on an alkene form? 
4 stereoisomeric products 
Brainpower 
Read More 
in a substitution rxn, what does H-O act as? 
nucleophile and replaces LG 
in an elimination rxn, what does H-O acts as? 
base and abstracts BH atom 
what is a requirement for elimination rxns? 
beta hydrogen 
what is a requirement for substitution rxns? 
leaving group 
...
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CHEM 210 REACTIONS EXAM NEWEST QUESTIONS AND ANSWERS (2023 / 2024) (VERIFIED ANSWERS)
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What is the degree of substitution? <<ANSWERS>>>The number of alkyl groups a specific carbon is 
bonded to (more alkyl groups means more stable) 
What reagents are required in a dissolving metal reduction? <<ANSWERS>>>Na or Li, ammonia 
(NH3) as solvent 
Provide a summary of dissolving metal reduction <<ANSWERS>>>2 hydrogens (one equivalent) are 
added to an alkyne to form the E alkene (anti addition) 
What is the stereochemistry of the dissolving ...
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