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Karsten Theis
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17 votes
2 answers
19k views

Is there a difference between equilibrium and steady state?

16 votes
4 answers
3k views

How can you build a model of tetrahedral coordination from objects found at home?

12 votes
1 answer
2k views

Is there a name for this algorithm to calculate the concentration of a mixture of two solutions containing the same solute?

10 votes
2 answers
5k views

Boltzmann factor vs. graph of Maxwell–Boltzmann distribution

10 votes
7 answers
4k views

What is the mathematical meaning of the plus sign (+) in chemical reaction equations?

10 votes
3 answers
1k views

What is the English translation of the German term "Aufschluss", a method to get insoluble analytes into solution?

9 votes
1 answer
441 views

How to you show a 3-center 2-electron bond in a Lewis structure?

8 votes
1 answer
417 views

What are the degrees of freedom that define the temperature of an ionic solid (such as sodium azide)?

8 votes
1 answer
257 views

Are there separate quantity symbols for the pKa of a substance and the pKa of its conjugate acid?

6 votes
0 answers
52 views

Are there acid/base processes in aqueous solution that are so slow that they are kinetically controlled?

6 votes
1 answer
195 views

In the absence of a physical model, how can I use free software to visualize stereochemistry?

6 votes
1 answer
292 views

Which textbook is this image on protein tertiary structure from?

6 votes
4 answers
1k views

Why do solutions of electron in a box (and in a ring) predict coefficients for LCAO (linear combination of atomic orbitals) in 1D systems?

6 votes
2 answers
798 views

How can you use ICE tables to solve multiple coupled equilibria?

6 votes
2 answers
717 views

Molecule with a quadrupole moment in an electric field

6 votes
3 answers
418 views

Changes in pH when adding substances other than acids or bases

6 votes
1 answer
820 views

What is the Gibbs energy of dissolving a solid in pure water?

6 votes
1 answer
3k views

How accurately does (pKa1 + pKa2) / 2 estimate the pH of an amphoteric salt?

5 votes
1 answer
1k views

Is liquid water in equilibrium with water vapor at room temperature?

5 votes
3 answers
763 views

Does gas chromatography follow the "like interacts with like" rule of thumb?

5 votes
1 answer
698 views

What is the physical state of vitamin E acetate at room temperature and normal pressure

5 votes
2 answers
647 views

Link between centrosymmetry, dipole moment and chirality

5 votes
1 answer
77 views

When non-polar particles interact through dispersion forces, how fast does a temporary dipole induce a dipole in the neighboring molecule?

5 votes
1 answer
230 views

For molecular orbitals, how is an energy of zero set or defined?

5 votes
1 answer
225 views

What can we learn from the energies of molecular orbitals?

5 votes
1 answer
1k views

The source for the N-N bond dissociation energy of 240 kJ/mol in the table

5 votes
1 answer
136 views

In acid/base chemistry, are there amphoteric substances that undergo something that resembles disproportionation in redox chemistry

5 votes
0 answers
69 views

What is the pKa of the O-17 hydronium ion?

4 votes
1 answer
136 views

Why use "molecular equation" to refer to a chemical equation describing a precipitation reaction?

4 votes
2 answers
102 views

What repulsion keeps non-hydrogen atoms at a distance: between inner shells or between nuclei?