All Questions
Tagged with ionic-compounds inorganic-chemistry
111
questions
5
votes
3
answers
279
views
Does chromium chromate — Cr₂(CrO₄)₃ — exist?
Is it possible to synthesise chromium(III) chromate/dichromate? The intended formulas are $\ce{Cr2(CrO4)3}$ and $\ce{Cr2(Cr2O7)3}$ and they feature both trivalent and hexavalent chromium. However, ...
user144956
0
votes
1
answer
43
views
I have fabricated a starch film impregnated with calcium carbonate, and the film is showing hydrophobic behaviour after addition of calcium carbonate
I have fabricated an extruded starch film, impregnated with calcium carbonate. After addition of calcium carbonate the contact angle of the film has risen suggesting a more hydrophobic surface. I have ...
-1
votes
1
answer
31
views
How do you perform an ion exchange of a monovalent cation with Br- counterion to a divalent or trivalent anion?
I tried to react an organic compound I have synthesized containing a di-N substituted imidazole bromide salt with Ag3PO4 with water at room temp to try to replace the Bromide with PO4(3-). I dont ...
- 137
4
votes
0
answers
316
views
Chemistry of Rutile, CdCl2 and CdI2
During lectures, we were told that 3d transition metal fluorides generally prefer a rutile structure. Chlorides prefer a $\ce{CdCl2}$ structure where $\ce{Cl-}$ adopt a CCP lattice and the metal ...
- 323
3
votes
1
answer
332
views
Can I convert copper(II) acetate or carbonate to copper(II) sulfate?
I am a high school student who does chemistry as a hobby, and as such I really don't know very much. I managed to make some copper(II) acetate and copper(II) carbonate, and now I'd like to convert it ...
-2
votes
2
answers
95
views
Are mixtures of finely ground solid fertilizer compounds stable? [closed]
If I had a combination of the following as finely ground powders, would it be relatively stable, or would they react to form other compounds?
Sodium Nitrate
Ammonium Nitrate
Calcium Nitrate
Potassium ...
1
vote
1
answer
2k
views
Compare the covalent character of ZnCl2, CdCl2,HgCl2
I want to know how to arrange the covalent character of ZnCl2, CdCl2, and HgCl2.
By Fajans' rules, We know that a smaller cation equals higher covalent character.
We also know that atomic size ...
- 199
1
vote
0
answers
244
views
Confusion related to exception in Fajan's rule (Regarding prediction in solubility of compounds in polar solvents)
My teacher taught us that higher the ionic character in a compound, higher is its solubility in polar solvents like water.
To illustrate this statement, he also gave us the following example-
LiOH< ...
- 342
-1
votes
1
answer
257
views
Is lead iodide a strong electrolyte?
So, lead iodide is insoluble. I see conflicting answers online. Some say it's a weak electrolyte because it is insoluble, others say it is a strong electrolyte because it is an ionic compound and any ...
- 21
0
votes
0
answers
132
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Does solid sodium hydroxide react with carbon dioxide and air moisture?
I heard a claim in the context of soapmaking that a stray grain of sodium hydroxide will decay into soda ash, i.e. sodium carbonate, on contact with air. This reaction happens in an aqueous solution, ...
- 101
2
votes
0
answers
55
views
Why is the Conductivity trend same in fused and in dissolved or aqueous state of ionic compounds?
For an example if we take $\ce{KCl}$ and $\ce{NaCl}$ then I have understood the part where in aqueous state $\ce{Na+}$ becomes bigger than $\ce{K+}$ hence the conductivity reverses but in fused state ...
- 31
0
votes
1
answer
597
views
Impurities in household baking soda
For a long time, I have been using store bought baking soda (with sodium bicarbonate as the sole ingredient listed) as the sodium bicarbonate in my (qualitative) home experiments, but recently I ...
- 47
-2
votes
2
answers
973
views
Why are group 13 compounds in the +1 oxidation state more ionic than those in the +3 oxidation state?
I know that for group 13 metals in the p block, the stability of +1 OS is generally more than the stability of +3 OS as it is energetically not favourable to attain the higher OS of +3 and such ions ...
user120098
-2
votes
2
answers
891
views
Isn't hydrogen chloride a salt, because it is an ionic compound? [closed]
So I just learned in chemistry that salts are ionic compounds.
Shouldn't,
$\ce{H+Cl-}$ be a salt since hydrogen ion has positive charge and chloride ion has negative charge? If $\ce{HCl}$ is a salt ...
3
votes
2
answers
802
views
Why is the thermal stability of calcium carbonate higher than that of magnesium carbonate even though lattice energy decreases down a group?
The difference in thermal stability of $\ce{CaCO3}$ and $\ce{MgCO3}$ can be explained using Fajans' rules, but why not using the lattice energy method?
Why is the thermal stability of $\ce{CaCO3}$ ...
