All Questions
Tagged with acid-base inorganic-chemistry
438
questions
11
votes
4
answers
3k
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Why does polonium form acidic oxides?
All metals form basic oxides. Metallic oxides are basic in character.
Polonium is a metal, so it should form basic oxides but it forms acidic oxides. Why are its oxides acidic in character?
0
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1
answer
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Why is phosphoric acid a weak acid?
What is the reason for the phosphoric acid $\ce{H3PO4}$ being a weak acid despite having a structure similar to that of sulfuric acid $\ce{H2SO4}?$
I found some sources claiming that the resonance of ...
CommunityBot
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1
answer
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The effects of acetic acid on porous concrete brick and mortar joints
I mistakenly applied a patio cleaner containing acetic acid to my porous concrete facing brick thinking it was biocide. The concentrate solution has a pH of 3 and I diluted it to one part concentrate ...
CommunityBot
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4
votes
2
answers
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Acidity of H4P2O7 and H3PO4
As given in pKa of H4P2O7 and H3PO4. The acidity of pyrophosphoric acid is clearly stronger than phosphoric acid. The two acid structures is given below.
Thought: Consider the pyrophosphoric acid ...
- 60k
0
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1
answer
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Amphoteric character of V2O5
In my NCERT textbook, in the chapter 'The d- and f-block elements', the last paragraph under oxides and oxoanions of metals goes like this:
$(...)$ $\ce{V2O5}$ is, however, amphoteric though mainly ...
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6
votes
1
answer
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How to make a thin layer of crystalline barium titanate on copper substrate?
Is it possible to create a thin $\ce{BaTiO3}$ crystal layer on a copper plate by putting the plate in a beaker, pouring in heated hydrofluoric acid that has been saturated with $\ce{BaTiO3}$ powder ...
CommunityBot
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2
votes
0
answers
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Phase diagram of ammonium hydrosulfide, a volatile salt
Salts (ionic compounds) usually have low volatility due to the strong ionic bond.
However, there are exceptions. Smelling salts decompose and release ammonia gas.
What is "volatile"?
If a ...
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-2
votes
2
answers
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Reaction between copper rod and carbon rod in hydrochloric acid [closed]
The situation is this: a copper rod and a carbon rod, touching each other, are submerged in HCl(aq). We're asked to describe the reaction that occurs, but as far as I can see, there's no reaction? The ...
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2
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1
answer
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Order of lewis acidity for BBr3, BCl3, BMe3, BH3, BPh3?
In case of $\ce{BCl_3}$ vs $\ce{BH3}$, which one is the controlling factor?
1) Is it p-pi p-pi interaction in $\ce{BCl_3}$ that makes it weaker than $\ce{BH3}$?
2) Or is it the -I effect of $\ce{Cl}...
CommunityBot
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-2
votes
1
answer
125
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Can phosphorous penta hydroxide [P(OH)5] exist? [closed]
I was looking at the oxyacids of Phosphorous and it is given that (in Wikipedia article of "Phosphorous acid"), some of these acids (Eg: $H_3PO_2$ and $H_3PO_3$) exist in a dynamic ...
- 4,606
2
votes
3
answers
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Reaction of concentrated nitric acid react with metallic lead?
Here is my work:
Concentrated $\ce{HNO3}$ should first decompose into $\ce{NO2}$, $\ce{H2O}$ and $\ce{[O]}$. Nascent oxygen should combine with $\ce{Pb}$ to form $\ce{PbO}$. Now $\ce{PbO}$ should ...
6
votes
1
answer
496
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Why does phosphinic acid not form pyroacids?
Why does $\ce{H3PO2}$ not form pyroacids? All I know is pyroacids are derived oxyacids obtained by removing one $\ce{H2O}$ molecule from two molecules of oxyacids. Correct me if this is wrong.
- 60k
2
votes
1
answer
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Does gold always become gold chloride when dissolved with HCl and an oxidizer and can it always be precipitated with sodium metabisulfate?
I tried to extract gold from computer parts by STRIPPING the gold using $\ce{HCl}$ and $\ce{H2O2}$ by dissolving the copper & nickel underneath but i added FAR too much $\ce{H2O2}$ by a stupid ...
- 60k
1
vote
2
answers
245
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Stability of H3MnO4, H2MnO4, HMnO4
I cannot seek out the reason why while $\ce{H3PO4}$ (phosphorus oxidation +5) is relatively stable and obtainable but $\ce{H3MnO4}$ (the same oxidation state +5) is rarely mentioned and perhaps ...
- 26.3k
-1
votes
1
answer
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Does pure HCl (without water) is an acid? [closed]
Hydrochloric acid is always discussed as dissolved in water, and acidity is measured in terms of pH by the concentration of the hydronium ion.
Is pure HCl still an acid, and if so, how can we measure ...
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