Questions tagged [ionic-compounds]
Compounds in which at least some of bonds have ionic character stronger than covalent or metallic. Many compounds called salts are ionic compounds but not all of them.
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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 ...
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Hannay smith equation derivation
Our chemistry teacher taught us about Hannay smith equation for calculating the percent ionic character. He did not told how that equation was derived. I could not find any satisfactory result from ...
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Why metal hydrides have low lattice enthalpy
Lattice enthalpy is inversely proportional to the distance between the ions. And the trend of lattice enthalpies is: $\ce{MF>MCl>MBr>MI}$. But why do metal hydrides have lesser lattice ...
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How to change the counterion of a nucleotide salt?
I need to take the sodium nucleotide salts I have available in my lab and modify them to instead contain some more exotic counterions. Can I do this by binding my nucleotides to a strong anion ...
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Are salts (e.g. NaCl) soluble in liquid metals?
I'm curious whether any salt would at all dissolve in a liquid metal, such as gallium, mercury, or some other metal in the liquid phase?
A Google search of "solubility of NaCl in Mercury" ...
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Why should we not add the H+ ion conc coming from water before calculating pH of acidic/basic solution?
For eg:
If we are calculating pH of the soln of a strong acid, we shall do this:
pH= - log [H+]
Where H+ is the concentration coming from that acid.
Why shall we not add to this concentration, the H+ ...
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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 ...
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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 ...
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Why would a metal form an ionic compound with a nonmetal from a lower period?
Take sodium iodide for example. I understand both elements can obtain a full outer shell via the electron transfer. But doesn't the electron move from a lower-energy orbital ($3s$ in sodium) to a ...
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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< ...
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Covalent character of bonds in uranium hexafluoride
In one of the questions in a qualifying exam it said that $\ce{UF6}$ is a "covalent compound". This fits the physical properties of the compound well, e.g. low boiling point, existence as ...
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How many multivalent elements are there? [closed]
According to this video there are 20 multivalent elements, and from the periodic table, I see 20, but according to multiple websites, including this, it says there are only 5. What am I not ...
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How do we know the ionic charge of iron or elements such as iron on the periodic table?
How do we find iron's ionic charge? I was taught that we use roman numerals but I don't see any on the basic periodic table of elements (I'm using this one). So how do we find iron's charge of Fe 2+ ...
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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 ...
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How do clay particles form a colloidal mixture?
I have been learning about water coagulation in my chemistry textbook. Apparently, before being treated, water has clay particles, primarily silicates and aluminosilicates, which apparently have a ...
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