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RobChem

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157 Questions

Votes Activity Newest Views
8
29
votes
4
answers
57k
views

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
21k
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
19k
views

Thermodynamic vs Kinetic Sulphonation of Naphthalene

organic-chemistry reaction-mechanism aromatic-compounds
Feb 16 '17 at 0:38 Gul 1
3
19
votes
3
answers
14k
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
4
answers
27k
views

Why is pyridine used when making tosyl esters from alcohols?

organic-chemistry reaction-mechanism alcohols catalysis organosulfur-compounds
Oct 4 '19 at 9:38 John B. 1
6
16
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
3
16
votes
1
answer
8k
views

Is cyclopentadiene or cycloheptatriene more acidic?

organic-chemistry acid-base aromaticity
Jan 8 '18 at 15:33 Community♦ 1
1
14
votes
2
answers
8k
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♦ 55.9k
 
13
votes
1
answer
553
views

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

organic-chemistry reaction-mechanism
Feb 9 '16 at 10:07 Jan 59k
2
12
votes
2
answers
2k
views

Effect of enatiomers in pharmaceuticals [closed]

stereochemistry history-of-chemistry drugs medicinal-chemistry pharmacology
Nov 5 '19 at 21:53 Community♦ 1
8
12
votes
2
answers
41k
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♦ 39.6k
2
12
votes
2
answers
8k
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
8k
views

Why is ammonia so much more basic than water?

acid-base
Sep 19 '18 at 15:13 Community♦ 1
 
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♦ 55.9k
 
11
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 4,792
2
11
votes
1
answer
2k
views

Mechanism of styrene dimerization

organic-chemistry reaction-mechanism
Jan 11 '18 at 2:33 Simon Cooper 1
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
2
11
votes
1
answer
5k
views

Reverse Friedel-Crafts mechanism

organic-chemistry reaction-mechanism
Mar 19 '15 at 19:36 jerepierre 9,917
2
10
votes
3
answers
37k
views

Entropy change in an adiabatic expansion

physical-chemistry thermodynamics entropy
Dec 22 '18 at 20:31 Community♦ 1
1
10
votes
3
answers
6k
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♦ 55.9k
3
10
votes
1
answer
10k
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
2
10
votes
5
answers
3k
views

What actually is the Wavefunction?

molecules atoms quantum-chemistry
Jul 14 '17 at 10:38 juanrga 313
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
18k
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 16.5k
2
9
votes
2
answers
3k
views

Is ozone an electrophile in the ozonolysis reaction?

organic-chemistry reaction-mechanism pericyclic
Nov 13 '18 at 17:16 Mithoron 4,122
3
9
votes
3
answers
13k
views

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

thermodynamics entropy
Sep 14 '17 at 7:01 krishnarao 1
4
9
votes
1
answer
2k
views

Why is Gibbs free energy more useful than internal energy?

physical-chemistry thermodynamics free-energy
Nov 13 '16 at 15:32 Community♦ 1
5
9
votes
1
answer
2k
views

How can two orbitals constructively and destructively interfere simultaneously?

bond atoms quantum-chemistry
Jan 15 '16 at 20:43 Peter Mortensen 249
 
8
votes
2
answers
172
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 '19 at 7:52 andselisk♦ 31.7k
1
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