All Questions
Tagged with aqueous-solution ions
82
questions
3
votes
1
answer
2k
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Reasons behind the different colors of a solution containing Iodine
Q) Iodine dissolves in a variety of solvents, forming solutions that are
purple, brown or any intermediate shade. This property is due to:
Hydrolysis of iodine
Formation of crystalline adducts
Charge ...
- 301
5
votes
2
answers
3k
views
Calculating approximate pH of polyprotic acids
When I took up ionic equilibria and titrations after a long break, I found it hard to solve the questions regarding pH calculations of polyprotic acds. Consider these two questions as examples:-
...
- 6,795
3
votes
1
answer
166
views
Isoelectric pH of colloids?
How did we derive the relation between the isoelectric pH and the dissociation constants for the amino and carboxyl groups on zwitterionic amino acids.
$$pI=\frac {pK_{a1}+pK_{a2}}{2}$$
where $$\ce{...
- 6,795
2
votes
1
answer
6k
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Reacting calcium with warm water and magnesium oxide with carbon dioxide, what are the products?
So I have several descriptions of reactions and I have to give the net ionic equation. Are these just the equations or are they the proper net ionic ones?
Solid calcium is added to warm water.
$$\ce{...
- 21
6
votes
1
answer
4k
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What is the exact definition of Salinity?
I am a bit unclear on the definition of salinity. I have always thought of it as simply total dissolved ions.
Wikipedia seems to agree "saltiness or dissolved salt content" but many other sources ...
- 792
20
votes
2
answers
1k
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Hydration of H⁺ ion
I know that $\ce{H+}$ is not possible in water and it is present as $\ce{H3O+}$. But later on I come to know that even $\ce{H3O+}$ is not possible and that it is present as $\ce{H9O4+}$.
Why does this ...
- 1,453
28
votes
7
answers
22k
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Why is silver chloride less soluble than silver nitrate?
Related: Reaction between silver nitrate and aluminum chloride
Experimentally, $\ce{AgCl}$ is insoluble in water, but $\ce{AgNO3}$ is soluble. They're pretty common in a lab (well, $\ce{AgCl}$ is a ...
- 15.2k