All Questions
Tagged with aqueous-solution solubility
35
questions with no upvoted or accepted answers
5
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0
answers
793
views
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
votes
0
answers
2k
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How to break down soap and detergents?
I am building a greywater harvesting system. It is a 3-stage system:
The 1st stage breaks down soap and detergents.
The 2nd stage filters the water.
The 3rd stage pumps water out of system.
What ...
- 41
3
votes
0
answers
39
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Maintaining our supersaturated oceans
Supersaturates solutions can be unstable and decay beautifully once a seed crystal is introduced.
Our oceans near the surface are supersaturated with respect to calcium carbonate. This map shows the ...
- 972
3
votes
0
answers
497
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The most convenient process to purify Oxalic Acid up to a high level of purity
I am set out to purify a batch of commercial oxalic acid with the aim in mind to end up with a highly pure product (starting from $\pu{4,000 ppm}$ total impurities and doing so with basic lab ...
- 1,097
3
votes
0
answers
110
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Poor aqueous solubility of chloroazodin
Below is the structure of chloroazodin:
Why is chloroazodin poorly soluble in water? It has multiple amine and imine nitrogens, all of which appear to be available for hydrogen bonding, and thus it ...
- 31
2
votes
0
answers
51
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Activity of NaCl aqueous solution at high ionic strengths: Common-ion effect
Is there any theoretical way to estimate the activity of $\ce{NaCl}$ at high ionic strengths in water and that in $\pu{7 M}$ $\ce{NaCl}$ solution? This question is based on whether solubility of $\ce{...
2
votes
0
answers
34
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Cleaning a stubborn Electrospray residue
I have an electrospray ionization capillary tip that sprays into a chamber that contains some circuit boards. An aqueous CsI sample is apparently causing a white residue to build up on these boards ...
2
votes
0
answers
298
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Varying data about solubility of sodium acetate trihydrate
I recently looked up the solubility of sodium acetate trihydrate in water at 20°C and found surprisingly diverse values such as:
613g/l (GESTIS-Stoffdatenbank)
762g/l (TU Freiberg)
1250g/l (applichem, ...
- 346
2
votes
0
answers
1k
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How does increasing ionic strength affect the pH of solution?
I'm having trouble interpreting the data for an experiment. With increasing ionic strength, I found lower solubility but also lower pH of the solution. What is the effect of the ionic strength on the ...
2
votes
0
answers
136
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Chemical theory, formula(s) that predict final *volume* of a solution?
I asked this question a couple years back regarding the volume of a mixture being less than the volume of the original solute and solvent, but this question asks if there is theory and/or formulation ...
- 2,773
2
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0
answers
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Solubility of carbon dioxide in 1M sodium hydroxide solution?
I know that carbon dioxide is soluble and forms carbonic acid, but exactly how is solubility measured?
How soluble is carbon dioxide in a 1M solution of sodium hydroxide?
- 149
2
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0
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197
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Alternative to water as solvent for lithium metaborate?
I want to prepare a sample of lithium metaborate ($\ce{LiBO2}$) and need to dissolve it for this purpose.
The only solvents I found so far are water and ethanol. In ethanol, one cannot dissolve ...
- 181
1
vote
0
answers
375
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Who is more polar: acetonitrile or methanol?
According to data dipole moment of acetonitrile is around 4 while that of methanol is 1.7 but is said that acetonitrile is more soluble in non polar solvent that methanol.
But shouldn't methanol be ...
- 21
1
vote
0
answers
75
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What does it mean for a substance to be "sparingly soluble"?
I have trouble understanding what solubility means. Merriam-Webster defines it as follows:
1 the quality or state of being soluble
2 the amount of a substance that will dissolve in a given amount of ...
- 67
1
vote
0
answers
697
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Solubility product constant of copper(II) bromide in water
One of the questions from chegg.com mentions $K_\mathrm{sp}(\ce{CuBr2}) = 6.3\cdot 10^{-10}$, but I suspect this value might be incorrect.
Could anyone confirm or refute that $K_\mathrm{sp}$ value?
...
- 1,097