User RobChem

6

28

votes

4

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54k

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What's the difference between a nucleophile and a base?

organic-chemistry acid-base

Mar 9 '17 at 13:23 Sana shahzadi 1

8

21

votes

3

answers

20k

views

Why is dU an exact differential and dq an inexact differential?

thermodynamics

Mar 24 at 14:13 Community♦ 1

11

21

votes

1

answer

16k

views

Thermodynamic vs Kinetic Sulphonation of Naphthalene

organic-chemistry reaction-mechanism aromatic-compounds

Feb 16 '17 at 0:38 Gul 1

3

18

votes

3

answers

13k

views

What is the mechanism of chlorosulfonation of benzene?

organic-chemistry reaction-mechanism aromatic-compounds

Apr 27 '18 at 17:52 Bob 1

2

16

votes

1

answer

7k

views

Is cyclopentadiene or cycloheptatriene more acidic?

organic-chemistry acid-base aromaticity

Jan 8 '18 at 15:33 Community♦ 1

1

15

votes

4

answers

25k

views

Why is pyridine used when making tosyl esters from alcohols?

organic-chemistry reaction-mechanism alcohols catalysis organosulfur-compounds

Oct 4 at 9:38 John B. 1

5

15

votes

1

answer

2k

views

Why is diborane cleaved symmetrically by trimethylamine but unsymmetrically by ammonia?

inorganic-chemistry hsab

Aug 31 '18 at 16:13 Community♦ 1

1

14

votes

2

answers

7k

views

Why does the carbonyl group in an acid anhydride have two stretching frequencies?

organic-chemistry spectroscopy carbonyl-compounds ir-spectroscopy

Sep 13 '17 at 15:35 orthocresol♦ 52.7k

13

votes

1

answer

524

views

Base catalyzed rearrangement of an alkyl substituted cyclopent-2-enone

organic-chemistry reaction-mechanism

Feb 9 '16 at 10:07 Jan 56.9k

2

12

votes

2

answers

2k

views

Effect of enatiomers in pharmaceuticals [closed]

stereochemistry history-of-chemistry drugs medicinal-chemistry pharmacology

Nov 5 at 21:53 Community♦ 1

2

12

votes

2

answers

7k

views

In molecular orbital theory, why does s-p mixing in the dinitrogen molecule not effect the 1σᵤ orbital?

inorganic-chemistry molecular-orbital-theory

Sep 23 '15 at 11:27 Hannes 1

1

11

votes

1

answer

7k

views

Why is ammonia so much more basic than water?

acid-base

Sep 19 '18 at 15:13 Community♦ 1

8

11

votes

2

answers

38k

views

Is s-p mixing referring to hybridization or is it the mixing of one atoms s orbital with the other's p orbital?

molecular-orbital-theory theoretical-chemistry hybridization

Aug 3 '18 at 11:28 Martin - マーチン♦ 38.6k

11

votes

1

answer

2k

views

Double alkylation of benzene to form tetralin

organic-chemistry synthesis aromatic-compounds

Mar 2 '18 at 10:08 orthocresol♦ 52.7k

2

11

votes

1

answer

2k

views

Mechanism of styrene dimerization

organic-chemistry reaction-mechanism

Jan 11 '18 at 2:33 Simon Cooper 1

11

votes

1

answer

21k

views

Mechanism for formation of amide by reaction of amine with ester

organic-chemistry reaction-mechanism esters amines

Mar 18 '16 at 6:11 Community♦ 1

1

10

votes

3

answers

5k

views

Chemical kinetics of a reversible reaction

physical-chemistry kinetics

Dec 8 '18 at 18:49 user71113 1

10

votes

2

answers

7k

views

What are the products of the reaction of 1-methoxycyclohexene with dilute hydrochloric acid?

organic-chemistry reaction-mechanism carbonyl-compounds c-c-addition

May 1 '18 at 22:58 orthocresol♦ 52.7k

10

votes

1

answer

19k

views

What is the difference between absolute and relative configuration in stereochemistry?

organic-chemistry stereochemistry

Feb 20 '18 at 10:59 Avyansh Katiyar 4,599

3

10

votes

1

answer

9k

views

Why does hydrogen bonding in salicylic acid make it more acidic?

organic-chemistry acid-base hydrogen-bond

Oct 20 '17 at 8:50 hassan majeed 1

1

10

votes

5

answers

3k

views

What actually is the Wavefunction?

molecules atoms quantum-chemistry

Jul 14 '17 at 10:38 juanrga 295

4

10

votes

3

answers

1k

views

Whats the difference between entropy and the (dis)order of a system?

physical-chemistry thermodynamics entropy

Feb 22 '17 at 15:14 Community♦ 1

3

10

votes

2

answers

16k

views

Why is the iodide anion a good nucleophile but a poor base?

organic-chemistry acid-base reactivity

Jun 27 '16 at 23:03 Dissenter 16k

2

10

votes

1

answer

5k

views

Reverse Friedel-Crafts mechanism

organic-chemistry reaction-mechanism

Mar 19 '15 at 19:36 jerepierre 9,769

2

9

votes

3

answers

32k

views

Entropy change in an adiabatic expansion

physical-chemistry thermodynamics entropy

Dec 22 '18 at 20:31 Community♦ 1

2

9

votes

2

answers

2k

views

Is ozone an electrophile in the ozonolysis reaction?

organic-chemistry reaction-mechanism pericyclic

Nov 13 '18 at 17:16 Mithoron 4,123

3

9

votes

3

answers

12k

views

What does the Clausius Inequality mean in thermodynamics? (entropy)

thermodynamics entropy

Sep 14 '17 at 7:01 krishnarao 1

8

votes

2

answers

165

views

Why is it necessary to consider infinitesimal changes in p,V,T for H,U and G given that they're state functions?

physical-chemistry thermodynamics free-energy

Dec 11 at 7:52 andselisk♦ 29.6k

8

votes

2

answers

920

views

Physical implications of the simple harmonic oscillator quantum mechanical solutions

physical-chemistry quantum-chemistry

Apr 6 '19 at 7:13 Hans Wurst 263

1

8

votes

3

answers

82k

views

What is the difference between configuration and conformation in stereochemistry?

stereochemistry

Nov 19 '18 at 3:18 Chandini 11

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157 Questions

What's the difference between a nucleophile and a base?

Why is dU an exact differential and dq an inexact differential?

Thermodynamic vs Kinetic Sulphonation of Naphthalene

What is the mechanism of chlorosulfonation of benzene?

Is cyclopentadiene or cycloheptatriene more acidic?

Why is pyridine used when making tosyl esters from alcohols?

Why is diborane cleaved symmetrically by trimethylamine but unsymmetrically by ammonia?

Why does the carbonyl group in an acid anhydride have two stretching frequencies?

Base catalyzed rearrangement of an alkyl substituted cyclopent-2-enone

Effect of enatiomers in pharmaceuticals [closed]

In molecular orbital theory, why does s-p mixing in the dinitrogen molecule not effect the 1σᵤ orbital?

Why is ammonia so much more basic than water?

Is s-p mixing referring to hybridization or is it the mixing of one atoms s orbital with the other's p orbital?

Double alkylation of benzene to form tetralin

Mechanism of styrene dimerization

Mechanism for formation of amide by reaction of amine with ester

Chemical kinetics of a reversible reaction

What are the products of the reaction of 1-methoxycyclohexene with dilute hydrochloric acid?

What is the difference between absolute and relative configuration in stereochemistry?

Why does hydrogen bonding in salicylic acid make it more acidic?

What actually is the Wavefunction?

Whats the difference between entropy and the (dis)order of a system?

Why is the iodide anion a good nucleophile but a poor base?

Reverse Friedel-Crafts mechanism

Entropy change in an adiabatic expansion

Is ozone an electrophile in the ozonolysis reaction?

What does the Clausius Inequality mean in thermodynamics? (entropy)

Why is it necessary to consider infinitesimal changes in p,V,T for H,U and G given that they're state functions?

Physical implications of the simple harmonic oscillator quantum mechanical solutions

What is the difference between configuration and conformation in stereochemistry?