Questions tagged [solubility]
For questions related to the solubility of compounds in various solvents, especially in water. Do not confuse with [solutions] or [aqueous-solution].
876
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1answer
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Solubility of Bromo halogen in water
Is 1,1-dibromocyclopentane soluble in water? Bromo is an electronegative halogen and I would think that the polar hydrogen boding from water would make the molecule miscible in water. Like dissolves ...
-2
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0answers
31 views
Can acetic or hydrochloric or nitric acid have any effect on Glycine in an aqueous solution? [closed]
If I saturate water with Glycine at 100C and add pure Acetic Acid (in quantities equal to 5% of the volume of the solution) and leave it under reflux for a night, will the glycine be affected in any ...
14
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2answers
86k views
Why does the solubility of Group II hydroxides increase and the solubility of sulphates decrease down the group?
I know that, solubility of alkaline earth metal hydroxides increases down the group and solubility of alkaline earth metal sulfates decreases down the group.
I wish to understand the reason for these ...
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0answers
34 views
Solubility of PbNO3 [closed]
I recently learnt, in my Chemistry practical class, that heavy salts are insoluble in water and lead salts are insoluble in HCl. But my teacher recently told me that \ce{Pb(NO3)_2} is soluble in water ...
0
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0answers
22 views
Solubility of Aluminium Fluoride in other other fluorine-containing solvents
I encountered a problem which required me to compare the solubility of $\ce{AlF3}$ in various solvents, namely $\ce{HF}$, $\ce{KF}$ & $\ce{KHF2}$ .
Further, this problem neither supplied, nor ...
3
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0answers
26 views
How can I solubilize fragrance oil into polyvinyl acetate/clear glue?
I'm a high school student who makes slime for fun, using polyvinyl acetate (PVA) glue and borax as my main ingredients.
Earlier, I had the idea of adding fragrance oils to clear glue. However, because ...
1
vote
1answer
49 views
How to read mutual solubility curves?
Came across a few graphs that represent the mutual solubility of two compounds, for eg, solubility of KCl, and NaCl with H2O.
On these particular graphs, I can see Y axis as gms/100ml of KCl, on X ...
2
votes
1answer
39 views
EDTA sedimentation problem?
I tried to create a suspension of EDTA powder in Glycerin with 1:1 ratio. I keep facing problem of EDTA sedimentation. I've tried other ratios also but this was the only one which formed least amount ...
1
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0answers
42 views
Solubility of gases in water in comparison to their liquefiability
My textbook of physical chemistry says
...The following factors affect the solubilities of gases in liquids:
(i) Nature of the gas and solvent: Generally, the gases which
can be easily liquefied are ...
1
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0answers
49 views
Water solubility comparison of stereoisomers of bicyclo [4.4.0] decane-3,4-diol
I think, (I) must be more soluble in water. It is due to trans configuration and thus, forming more effectively inter-molecular hydrogen bonds with water molecules.
0
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2answers
92 views
What is the minimum mass of iron(III) chloride required to be added until the dark blue precipitate first appear?
How do I solve this question?
The presence of iron(III) ion is confirmed in a qualitative analysis by adding potassium hexacyanoferrate(II) ($\ce{K4[Fe(CN)6]}$) solution.
A dark blue ...
1
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1answer
60 views
MgO as food supplement - solubility in water
A number of magnesium food / sports supplements contain it as MgO - which is practically unsoluble in water. The recommended quantity is somewhere around .3g / day, so not an insignificant amount.
How ...
2
votes
2answers
86 views
Criterion for gravimetric analysis of silver
If the only criterion for gravimetric analysis of silver is solubility of precipitate, which one of the following two compound are we supposed to choose? $K_\mathrm{s}(\ce{AgCl}) = \pu{1.78E-10}$ and ...
6
votes
2answers
14k views
Synthesis of Potassium Trioxalatoaluminate (III) Trihydrate
We mixed $\ce{Al}$ powder and hot water. Then we added $\ce{KOH}$ to the $\ce{Al}$ solution and it bubbled heavily (producing $\ce{H2}$). When that was over we added oxalic acid dihydrate to the ...
0
votes
1answer
30 views
Does PEO particle size decrease when dissolved in water?
I am looking to make metallic ink for inkjet printing and using PEO 1 wt% (MW ~600,000) as a binder. The print head I am hoping to use has a nozzle diameter of 80 microns. The metal powder dispersed ...
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0answers
24 views
liquid soap and solid soap, why potassium soap gives liquid soap tho? [duplicate]
I think it is somehow link to the solubility of the soap? but why potassium soap is more soluble?
potassium salt like KCl has a higher enthalpy of solution than NaCl tho? Is that something to do with ...
5
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0answers
19 views
Does Ļ values vary in Hansch-Fujita equations for a given substituent?
I was reading about Hansch-Fujita equations from Hansch-Fujita paramaters and observed that the $Ļ$ values of substituents (analogous to Hammet $Ļ$ values) change according to the specific environment ...
7
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3answers
5k views
Solubility of methanol and ethanol in water
Which substance is the most soluble in water?
$\ce{CH3OH}$
$\ce{CH4}$
$\ce{C2H6}$
$\ce{C2H5OH}$
I wasn't able to decide between 1 and 4, as both have hydroxides, but the answer is 1. ...
7
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4answers
114k views
How do you explain pKa to non-professional?
Let's say we have substance $\ce{A}$, which is mixed with substance $\ce{B}$ to improve shelf-life because $\mathrm{p}K_\mathrm{a}$ of the substance $\ce{A}$ is $7.9$ and in mix the $\mathrm{pH}$ is $...
2
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1answer
83 views
Judging orders in a series of compounds
My teacher frequently gives us questions where we have to arrange the given binary compounds on basis of their melting points or solubilities. He did give us some instructions in order to judge this ...
2
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1answer
97 views
Order of solubility of sodium halides and potassium iodide
Order the following ionic compounds in decreasing order according to their ease to dissolve in water.
a) NaBr; b) KI; c) NaF; d) NaCl.
d > a > b > c
a > b > c > d
b > c > d &...
2
votes
2answers
255 views
Do strong acids actually dissociate completely?
Do strong acids actually dissociate completely (every single molecule dissociates), or are they just assumed to do so for the sake of simplicity? That seems odd, considering weak acids, many of which ...
0
votes
1answer
47 views
Precipitation of a lead(II) sulfate
Lead (II) sulfate precipitate can be dissolved if:
a) We add an acid
b) We add EDTA
c) None of the above is true.
I think EDTA is a ligand, and if you want to dissolve the sulfate, then Pb sticks ...
2
votes
1answer
720 views
Trends in solubility of group 2 nitrates
In my lab report, we are required to explain the trends in solubility of group 2 salts, going down the group. I had explained all of the trends except one, group 2 nitrates. The following is the data ...
2
votes
3answers
1k views
How can I filter dissolved PVA from water
I'm working with a 3D printer that uses PVA filament as a support material. After a 3D printed part is made, it is put in water for some time to dissolve away the PVA supports.
I'm trying to speed ...
6
votes
2answers
2k views
The Salt Room, is there salt in the air?
I work in a restaurant where we dry age our uncut steaks in a cooler. Dry aging is a wonderfully complex process that improves the flavor of richly marbled steaks. Our particular type of aging cooler ...
0
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0answers
26 views
Aluminum Monoacetate Solubility in Aqueous Medium?
Does anyone have access to the aqueous solubility value of aluminum monoacetate?
I would expect it to be slightly soluble but I've searched the internet and haven't found any solubility values. : /
2
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0answers
2k views
Lithium chloride is soluble in pyridine while other lithium halides are not. Why?
Lithium chloride is soluble in pyridine while other lithium halides are not. Why?
I know that lithium chloride is deliquescent like magnesium chloride. Lithium halides are covalent and thus are ...
4
votes
1answer
316 views
Why exactly does high pressure (72 bar) nitrous oxide's pseudocritical¹ temperature drop so far when oxygen is added to make 50%v/v mixture? (Entonox)
This answer to Can precipitation occur in states of matter other than liquids? mentions the unusual case of Entonox.
The effects of temperature on nitrous oxide and oxygen mixture homogeneity and ...
1
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1answer
66 views
Why are alkali metal compounds like sodium hydride or sodium amide strong bases but weak nucleophiles?
I understand why compounds such as $\ce{NaH}$ or $\ce{NaNH2}$ are weak nucleophiles: as they aren't very soluble in organic solvents, they react only on the clusters' surface. But why are they strong ...
1
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1answer
52 views
Is it possible to make a solution of zinc oxide in a high school chemistry lab?
As part of my IB Chemistry curriculum, we are required to conduct our own experiment researching our own question. I'm in the preliminary research phase and wanted to conduct an experiment looking at ...
0
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1answer
38 views
Water solubility of different types of Iron III
For an experiment I require an aqueous solution of Iron(III). My school has the following compounds, which of them are water soluble? I believe that only Iron(III) oxide is insoluble, but I would like ...
0
votes
1answer
48 views
Effect of mixing acids on solubility
Please help me clarify the title if you come up with a better way to put it (you certainly will).
My question is the following:
If you make a mix of equal parts of various acids (Bicarbonate, ...
0
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0answers
21 views
Comparative Solubility of Double Salts
Is there a tendency that could be used to generally forecast how a double salt might dissolve in aqueous medium compared to the simple salts of its constituents?
Example:
There is metal A, metal B and ...
3
votes
2answers
5k views
Why are magnesium chloride and calcium chloride more soluble than sodium chloride?
I read that $\ce{MgCl2}$ and $\ce{CaCl2}$ are more soluble than $\ce{NaCl}$ in water. Solubility of $\ce{MgCl2}$ is $\pu{543 g/L}$ and that of $\ce{NaCl}$ is $\pu{360 g/L}$ (both at $20^{\circ} \pu{C}$...
0
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3answers
65 views
A problem regarding solubility and concentration
A solution is $\pu{0.10 M}$ $\ce{Ba(NO3)2}$ and $\pu{0.10 M}$ $\ce{Sr(NO3)2}$. If solid $\ce{Na2CrO4}$ is added to the solution, what is the $\ce{[Ba+]}$ when $\ce{SrCrO4}$ begins to precipitate? $\...
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0answers
22 views
Dissolving Polystyrene with D-Limonene
I have a product, which according to the MSDS is mostly D-Limonene. I don't have the means to chemically test it, but I did try dissolving polystyrene with it. Before I come check it again, should I ...
0
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1answer
42 views
Deposition of saturated solution and affect of evaporated water
20g of water is evaporated from 200g of saturated solution of KNO3(aq) at 60Ā°C by heating and the solution was cooled to 20Ā°C. How many grams of KNO3 were deposited? The solubility of KNO3 in 100g of ...
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2answers
26 views
Effect of water vaporation on saturated solution
At a high temperature, water is evaporated from the saturated solution by heating. What is the solution losing exactly by the fact that the water left the saturated solution? Does it affect its ...
1
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2answers
237 views
Solubility of potassium silicate in water
It is somewhat surprising to me that there is almost no data about solubility of potassium silicate in water under normal conditions. The only thing I was able to find is the following:
<0.336 g/L ...
0
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2answers
57 views
Are all mixtures linear?
I'm writing a computer program to help a factory produce bottles of mixtures. A mixture is usually alcohol, water and some other stuff, like menthol. But could also be water and NaOH and some oils (...
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0answers
19 views
Does #4 LDPE Plastic Bottle Leach into Water?
I understand that Water Bottles expire due only to the fact that the plastic can degrade over time and leach into the water making the water's taste not as desirable as the manufacturer might intend.
...
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0answers
12 views
Student Question regarding molecular van der Waals volume and Polarizability
I would like to request a crosscheck of my understandings regarding molecular van der Waals volume and polarizability. Please have a look through my statements about these 2 concepts below and point ...
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1answer
58 views
How does chromium behave in a carbonate solution? [closed]
I'm wondering how chromium (as a metal or as a salt) behaves in a concentrated carbonate solution. Will it form any, one or several carbonate specie(s)? Will the metal solubilize? How does it affect ...
0
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0answers
42 views
Why does increasing charge density matter more for the hydration enthalpy compared to the lattice energy?
For the solvation of ionic salts, if we look down a group, say Group II, and we keep the anion constant, we find that the solubility decreases going down the group. This is because the hydration ...
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1answer
112 views
I need help finding several immiscible liquids [closed]
I am trying to fill a vial with as many immiscible liquids as possible so that they form many separate layers. I want to do this as a way to visualise how liquids with different refractive indexes ...
2
votes
1answer
3k views
What is the difference between dissolution and absorption?
Let us first look at the definitions from Gold Book:
Absorption:
The process of one material (absorbate) being retained by another (absorbent); this may be the physical solution of a gas, liquid, ...
0
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1answer
40 views
NaHCO3 decomposition dynamics and extent vs Temperature
I'm wondering approximately how fast and to which extent $\ce{NaHCO3}$ will decompose (to $\ce{CO2}$ and $\ce{H2O}$) at $50$, $60$, $70$, $80$, $90$, $100$, $110$, $120$, and $\pu{130 ^\circ C}$.
It ...
1
vote
1answer
76 views
Are all gases equal in their ability to carry with them lower volatility matter at a given temperature? [closed]
As we all know water is a great solvent in it's liquid form relative to other substances. I wonder however how it performs as a gas relative to other stuff.
Does anyone know how well steam carries ...
4
votes
2answers
132 views
How does a shock, such as the snap of the disk in a reusable hand warmer, trigger the re-crystalization of a supersaturated solution?
Reusable handwarmers are made of something dissolved nearly to its saturation point in hot water (Sodium Acetate in the case of HotSnapz) at a high temperature, and then cooled to a temperature at ...
