Linked Questions

14
votes
1answer
7k views

Why isn't the orbital angular momentum also considered while calculating the magnetic moments 3d transition elements?

My textbook (Chapter: The d- and f- Block Elements) makes an interesting assertion, however, without any reason to back it up. Paramagnetism arises from the presence of unpaired electons, each such ...
-1
votes
0answers
43 views

Confusion in solution for this Question regarding mole concept

$\pu{48g}$ of graphite and $\pu{16g}$ of $\ce{O2}$ is given. The question is to count the no of molecules of $\ce{CO2}$ produced? Now, the solution in book is this No of $\ce{C}$ atoms = $\frac{\pu{...
-1
votes
0answers
22 views

How to learn the concept behind Thermodynamics, Equilibrium, Electrochemistry, Chemical Kinetics [closed]

I am currently reading Thermodynamics, Chemical Equilibrium, Ionic Equilibrium, Electrochemistry, Chemical Kinetics for JEE Advanced exam in India. Now when I am solving problems I can not inter ...
2
votes
2answers
3k views

Carbonyl bond vs alkene bond

Why is that carbonyl bonds are stronger than those of alkenes? It's a basic question but I've never really thought much about it. I've read several times that carbonyl bonds are shorter and you need ...
2
votes
0answers
43 views

$j$-$j$ coupling interaction in Magnetic Resonance Spectroscopy

I am studying Magnetic Resonance Spectroscopy and I have some difficulties in understanding the j-j coupling interaction. What does actually happen from the physical point of view to the electronic ...
1
vote
0answers
44 views

Solubility of gases in water in comparison to their liquefiability

My textbook of physical chemistry says ...The following factors affect the solubilities of gases in liquids: (i) Nature of the gas and solvent: Generally, the gases which can be easily liquefied are ...
0
votes
1answer
63 views

Energy levels of combined orbitals

I saw the MO diagram for a NH3 molecule but couldn't understand why the combined atomic orbitals were in the positions they were, and if these positions were fixed. Why is the sigma anti bonding ...
-1
votes
1answer
37 views

What is the implication of having the internal energy equal the Gibbs free energy?

I came up with a hypothetical equation of state, where one of the consequences is that $U=G$, where $U$ is the internal energy and $G$ is the Gibbs free energy. I wanted to ask the chemists, is there ...
0
votes
1answer
49 views

Finding the structure based on spectra

I had to identify the structure of a drug based off the spectra I had. I suck at this. I gave it my best go and got some ugly structure, only to check it using a database and find out I was wrong. I ...
1
vote
0answers
21 views

Reference for molecular orbital theory [duplicate]

I am studying electron collision with molecules, and came across with notation like this $\left(\mathrm{B}^{1} \Sigma_{u}^{+}, \mathrm{c}^{3} \Pi_{u}, \mathrm{a}^{3} \Sigma_{g}^{+}, \mathrm{C}^{1} \...
0
votes
1answer
61 views

Will group 2 chlorides dissolve in water in water or react to produce distinct products? How does this differ by the type of salt? [closed]

I thought it'd dissolve... but am i wrong? I added calcium chloride to water, and it was smoking, i was so confused. Can someone explain happened? I am doing an experiment where i dissolve salts in ...
8
votes
1answer
194 views

My Misconception of Entropy

It was recently brought to my attention that my understanding of entropy is wonky at best. In my experience, entropy was introduced (superficially at best) during general chemistry/foundations of ...
0
votes
2answers
82 views

How does current start to flow when galvanic cell is first connected?

Using the Daniell Cell as an example, where in the steady state we expect zinc to be oxidised and copper to be reduced spontaneously due to the overall reduction in Gibbs free energy, how does the ...
11
votes
4answers
706 views

Stability of 4-pyridone vs 4-pyridinol

In kryptomerism assignment, there was a question to compare more stable tautomeric form between 4-pyridone (1) and 4-pyridinol (2): Answer: 4-pyridone. My friend gave two plausible reasons: $\ce{C=...
1
vote
1answer
109 views

Book Recommendation for Molecular Orbital Theory [duplicate]

I posting my question here since I have seen similar questions but I haven't found the specific answer I am searching for. I am seeking textbook recommendations on Molecular Orbital Theory with ...

15 30 50 per page
1
2 3 4 5 6