All Questions
Tagged with acid-base inorganic-chemistry
68
questions with no upvoted or accepted answers
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1
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Order of Basicity of Nitrogen Trihalides
I was asked to arrange nitrogen tri-halides in order of increasing basicity. On looking up the answer online, it turned out to be the following: $\ce{NF3}$ < $\ce{NCl3}$ < $\ce{NBr3}$ < $\ce{...
- 101
7
votes
0
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547
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Ligand strength - Coulombic effect and/or Electronegativities?
According to my teacher, these three Lewis bases generally decrease in strength in the following order:
Ammonia
Water
Hydroxide ion
I agree. However, he argues that their ability to act as Lewis ...
- 19k
5
votes
0
answers
793
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Solubility of PbSO4
The solubility of $\ce{PbSO4(s)}$ increase with the addition of $\ce{H2SO4}.$ Why?
I don't quite understand this. When dissolving $\ce{PbSO4(s)}$ we get the equilibrium equation:
$$\ce{PbSO4(s) <=...
- 79
4
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What are the applications of tetraxenonogold(II)?
I recently stumbled upon a pretty interesting chemical: tetraxenonogold(II) $\ce{AuXe4^2+}.$ Basically, an atom of gold with four xenons around. It is a product of a superacid reaction and it is ...
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4
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0
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56
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acid strength: Periodic trends vs delocalisation, which one is more important
In 1st year chemistry questions, the concept of acid strength is often introduced to students including the 3 factors that provide a heuristic explanation for most of the common acids and conjugate ...
- 698
4
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Titanium in HF vs HCl
So we tried the reaction between Titanium metal with hydrochloric acid and hydrofluoric acid at a similar concentration. While boiling temperatures and constant heat over a long period of time are ...
- 4,322
3
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0
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Is hydrochloric acid or sulfuric acid more corrosive to titanium?
Which acid is more corrosive to titanium at 20 to 30 °C and similar concentrations: hydrochloric acid $\ce{HCl}$ or sulfuric acid $\ce{H2SO4}$?
I found some info on AZoMaterials — Titanium - Corrosion ...
- 131
3
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0
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156
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What is the relation between strength of a base and the thermal stability of its salts?
In Concise Inorganic Chemistry, $5^{th}$ edition, by JD Lee, while discussing oxides and hydroxides of Group $2$ metals, it has been stated that:
The increase in basic strength is illustrated by the ...
- 629
3
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0
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243
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Why AlCl3 more acidic than FeBr3?
In compounds with lone pairs or with charge it is easy to predict acidity of compounds but how to describe acidic nature of such ($\ce{FeBr3}$, $\ce{AlCl3}$) transition element compounds ?
- 709
3
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Acidity comparison of charged group 16 hydrides
March's Organic Chemistry (7th ed - page 337 under "Periodic Table Correlations" in chapter "Acids and Bases") states that:
$\ce{H3O+ > H3S+ > H3Se+}$ is the acidity order of these charged ...
- 9,881
3
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Can someone help me finish this reaction?
This question revolves around sodium percarbonate (https://en.m.wikipedia.org/wiki/Sodium_percarbonate) and its reaction with sulfuric acid.
I didn't find anything, so I tried assembling it myself.
...
- 360
3
votes
0
answers
3k
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Hard and Soft Acid and Bases in terms of HOMO and LUMO
It has been given in a book and on Wikipedia that:
hard bases have highest-occupied molecular orbitals (HOMO) of low energy, and hard acids have lowest-unoccupied molecular orbitals (LUMO) of high ...
- 981
3
votes
0
answers
261
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Relative etch rates of nitric acid on metals and oxides
I am trying to either find or calculate the etch rate of nitric acid ($\ce{HNO3}$) for various different metals and oxides. The ones I am interested in are titanium ($\ce{Ti}$), zirconium ($\ce{Zr}$), ...
- 81
3
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0
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236
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What acid can remove Calcium in Ca2SiO4 to leave SiO2 (mostly)
What acid can remove calcium in $\ce{Ca2SiO4}$ to leave $\ce{SiO2}$ (mostly)?
It seems that calcium silicate is stable in most acids, but I need to etch it and leave only silica (mostly).
- 302
3
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0
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290
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If both nitric acid and nitrate ion are stabilised through resonance, what makes the nitrate ion more stable in aqueous medium?
If both nitric acid and nitrate ion are stabilised through resonance, what makes the nitrate ion more stable in aqueous medium?
Can the same argument be applied to nitrous acid and nitrite ion in ...
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