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].

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Solubility of alkali and alkaline earth metal carbonates

The solubility of alkali metal carbonates increase down the group, while those of alkaline earth metals decrease down the group. We can explain the decrease in solubility of alkaline earth metal ...
wonderingwhy's user avatar
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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 ...
T J's user avatar
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Solubility of CsCl

I was just learning in analytical chemistry about classical cation separation and in the $\ce{HCl}$ group I was wondering why $\ce{CsCl}$ is apparently easily soluble in water when $\ce{AgCl}$ ...
Selenimoon's user avatar
2 votes
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In an unsaturated solution, is the product of ions still equal to Ksp?

Suppose I have a solution of a sparingly soluble compound, and consider its solubility in g/L. If I have less g/L of solution than that amount, it means the solution is unsaturated, but what happens ...
odin98's user avatar
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why did my toothpaste remove ink from a vinyl skin?

i spilled some ink on a matte white vinyl laptop skin and the stain was not removed by water or by isopropyl alcohol, but the stain was quite effectively removed with an h2o2-based whitening ...
mpemulis's user avatar
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Solubility of hydrogen

I'm interested in bacterial fermentation which produces molecular hydrogen as an end product. If bacteria produce molecular hydrogen in solution under anaerobic conditions, does this remain dissolved ...
JadeD's user avatar
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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 ...
odin98's user avatar
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Isolating the zinc core from the copper shell of a U.S. penny

I am a grad student who has a friend with a pretty nice personal lab, one thing I have always sought out to do as a chemist is to remove only the copper (and also obviously the copper oxide) from the ...
Jenny Moore's user avatar
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Is this evidence that solubility of sodium bicarbonate<sodium carbonate?

Someone introduced $\ce{CO2}$ into saturated $\ce{Na2CO3}$ solution, and observed that white precipitate is produced. He therefore claims that $\ce{NaHCO3}$ has less solubility than $\ce{Na2CO3}$. His ...
youthdoo's user avatar
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How to remove color from bromostyrene/dibromostyrene

Distillation under low heat can remove color (excess bromine) but this is time consuming and there is a danger of bromostyrene polymerization even with added TBC. In aqueous, sodium thiosulphate can ...
Don Volk's user avatar
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Is a microplastic saturated ferrofluid polar or nonpolar? [closed]

In my experiment (Junior science fair) I submerged a magnetic chip collector holding my ferrofluid (magnetite and grape seed oil) with polypropylene beads (attracted as part of the experiment) into ...
Jack R's user avatar
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Calculating the solubility of nitrogen in a liquid in high pressures and low temperatures

I'm trying to get nitrogen dissolved into my homebrewed beer. I have a nitrogen tank that I'm going to hook to a keg that's rated for 130 PSI (with a PRV rated at 100 PSI). Is there any way to ...
StoutEnthusiast's user avatar
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How to determine the dynamic of progression of two simultaneous precipitation (double replacement) reactions? [duplicate]

We have a solution of mineral water with potassium chromate added to it, and want to titrate the chloride ions in the mineral water. We were told to use silver nitrate for this, which would produce ...
Abdelhadi Bouziani's user avatar
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How do you calculate the pH range for which one metal precipitates but the other stays in solution?

The problem I have been asked to solve is: $\ce{Cd^2+}$ and $\ce{Fe^2+}$ (starting concentration $\pu{E-3 mol/L}$) should be separated by precipitation using $\ce{H2S}$. Does a pH range exist ...
andrej's user avatar
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chemical to prevent recrystallization of zinc and iron sulphate in solution

500 gm zinc sulphate and 280 gm iron sulphate ( total weight 780gm ) were taken in flask and water is added to make final volume 1 liter. the solution is heated to dissolve the zinc and iron sulphate ...
Dr. Mirza's user avatar
4 votes
1 answer
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Why is benzene more soluble than chlorobenzene in water?

Wikipedia lists chlorobenzene's solubility in water at 0.5 g/L at 20C, and benzene's at 1.79 g/L in 15C and 1.84g/L at 30C. Chlorobenzene is very slightly polar, shouldn't it be more soluble? What ...
ead1's user avatar
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Small (personal) scale sea salt production?

I was looking to try to make a small setup for producing small amounts of sea salt. Ideally a series of evaporation chambers, with a heavy brine as the finished product, that could then be baked. May ...
user139996's user avatar
2 votes
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Creation of a Solution of Liquid Latex + Sodium Caseinate with Polyvinyl Alcohol

I am going to be experimenting with creating different types of liquid latex formulations, primarily for the purposes of increasing shear strength and tear resistance, as well as just general ...
Varstraypl's user avatar
2 votes
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67 views

Solubility of raspberry ketone in paraffin oil

I want to dissolve raspberry ketones (RK) in paraffin oil, but I'm not sure about its solubility in it. I want to use this mixture for the fruit fly's behavioral study. Is it possible to dissolve the ...
Abdur Rahman's user avatar
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Pressure degasser of water

Currently, I am working on a project where we are using pressure degassing. The idea is to make a test setup where we lower the pressure in a flask to 'degas' the solution. The solution is just ...
quinten's user avatar
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What solvents can I use to dissolve Epichlorohydrin rubber and Chloroprene Rubber

I am working with Epichlorohydrin and Chloroprene Rubbers and I would like to cast films of 2 mm at most. The solvents I have in my lab are DMSO, THF, DMF, Acetone, Ethanol and Propylene Carbonate. ...
Arjun Satheesh's user avatar
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2 answers
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What is more soluble, calcium sulfate or calcium sulfate dihydrate?

I think the dihydrate form is more soluble right? I expect because of the sulphate group attached to two molecules of water. Also, do you know what's the solubility of each in g/L? Thank you in ...
Alejandro L's user avatar
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How does a dry shampoo work?

From my chemistry knowledge, I know that soaps are made from fatty acids and some sort of base and this reaction also gives us $\ce{H_2O}$ so the grease in hair dissolves and gets washed away in water....
Rose's user avatar
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Improving the solubility of p-dibromobenzene in a reaction with water as solvent

I am trying to react p-dibromobenzene with Fenton's reagent (in an attempt to see if I can add alcohol groups to the ring and observe if there is any specificity in its addition), in this case using %...
Eric's user avatar
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How to clean naphtha of non-saponifiable fats

My dad has been using naphtha to degrease some animal bones, which based on the MSDS is probably some random jumble of hydrocarbons, mostly heptanes. He's trying to be environmentally friendly so he ...
ProfWalrus's user avatar
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Solubility of silver chromate in ammonia

Does anyone know where I can find data on the solubility of silver chromate in an aqueous ammonia solution (100 mL) of concentration 2 mol/L at 25 C? Values for different concentration and temperature ...
crvenikupus's user avatar
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If air can be dissolved in water, is water vapour dissolved in air? [duplicate]

If O2 dissolved in water acts like a liquid even though it is a high temperature, then is water vapour in the air "dissolved" as it acts like a gas at less than 100C? Or is there a different ...
Mark's user avatar
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Determining whether precipitation will occur or not and finding the concentration of a specific ion in a solution

The Ksp value of AY2 = 9.148 x 10^-2. I am having problem with calculating the concentration of ions. And without the correct concentration I can't find the Qsp/Kip so I'm stuck without them I can't ...
whoami's user avatar
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Determination of the chloride concentration by the modified Volhardt method

Would someone help me solve a task: The concentration of chloride ions in aqueous solutions can be determined by the Volhardt method. An excess of silver nitrate is added to the sample containing the ...
crvenikupus's user avatar
4 votes
1 answer
207 views

What factors cause a few sodium salts to be water-insoluble?

We know that almost all salts with sodium as cation are water-soluble. But there are a few examples where the salt is water-insoluble; such as sodium bismuthate, sodium fluorosilicate, and much more. ...
Walter Heisenberg White's user avatar
3 votes
0 answers
162 views

Why is folic acid very slightly soluble in water while it's a B vitamin?

The solubility of folic acid is just 1.6 mg/L (25 °C). Why is it so insoluble in water while it is one of B vitamins which are called water-soluble vitamins beside Vitamin C?
Walter Heisenberg White's user avatar
-1 votes
1 answer
196 views

If I make CO2 by exposing CaCO3 to HCl, how much of it would be dissolved in the water [closed]

For an experiment we're trying to measure the amount of gas produced in this reaction. But we always find less gas then expected, then a colleague told me that it could be because some of the CO2 ...
Thomas's user avatar
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1 answer
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Why have my recent boiled eggs contain water within the membrane?

My wife recently boiled eggs from the grocery. Every single one of the eggs has contained water with in the membrane where the hollow portion of the egg is normally. I have only seen this if maybe the ...
Fred Shalackey's user avatar
1 vote
1 answer
111 views

Solubility of SrF2 in aqueous solution of NaF

This might be really simple question but I have no idea how to proceed to solve such kind of question. The solubility product of $\ce{SrF2}$ in water is $\pu{8E-10}$. Calculate its solubility in 0.1M ...
izack's user avatar
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2 votes
1 answer
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Equilibrium Solubility of CO2 in Aqueous Solution and its Dependence on H3O+ Concentration

The equilibrium solubility of $\ce{CO2}$ in an aqueous solution is given by three chemical reactions: $$ \begin{align} \ce{CO2(g) &<=> CO2(aq)}\label{rxn:R1}\tag{R1}\\ \ce{CO2(aq) + H2O &...
Lineare Libelle's user avatar
1 vote
1 answer
76 views

Are all salts completely dissociated in solution when put in smaller amounts than their molar solubility?

From what I understand, the solubility is given in terms of molar solubility (or $\pu{K_{sp}}$), from which it can be easily calculated). Indeed, the saturation point represents the maximum amount of ...
odin98's user avatar
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How can two separate phases interact with each other in an separatory funnel

Hello I was thinking about the following process. I was working in the lab, and synthesized a chelator for various metals, iron, copper etc.; however, when extracting the mixture with water and ethyl ...
Mäßige's user avatar
1 vote
1 answer
84 views

Scrubbing methanol and ethanol from a gaseous mixture

I have a gaseous mixture (air) at a temperature of approximately 30 degrees Celsius in which the following gases are present: Oxygen 0 - 25% Carbon Dioxide 0 - 20% Methanol 0 - 100 ppm? Ethanol 0 - ...
DenmarkViking's user avatar
-2 votes
1 answer
87 views

Why my mineral water from different sources do not mixed well? [closed]

Background: In 8 hours range, I have bought cold mineral water (brand A), then refill the plastic bottle with cold mineral water (brand B) from my office. As far i know, brand B has high pH while ...
Yukha Dharmeswara's user avatar
3 votes
1 answer
341 views

What is the effect of dissolving ammonia in water on hydrogen bonding?

Hydrogen bonding exists between $\ce{NH3}$ molecules. When $\ce{NH3}$ is dissolved in water, I know that hydrogen bonds are formed between $\ce{NH3}$ and $\ce{H2O}$ molecules. However, do the $\ce{NH3}...
photon's user avatar
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2 votes
1 answer
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Removing 9-Aminoacridine from tissue?

There's this compound 9-Aminoacridine, that I need removed from the tissue slides it was applied to. Thing is everytime I use ethanol, Acetone, water, methanol, all the usual solvents; our pathologist ...
Sciguyyy's user avatar
0 votes
1 answer
77 views

Question about solubility of silver halide

In many japanese chemistry books for highschool students, it is written that AgF is soluble in water because compared to other silver halides ionic nature of Ag-F bond is greater. I don't think this ...
satoru kurita's user avatar
0 votes
1 answer
63 views

HPLC Solubility vs polarity

According to this data collected from PubChem, polarity of nitrobenzene and benzonitrile should be similar since solubility is dependent on the polarity: Nitrobenzene: Solubility in water, 0.2 g/100ml ...
O.Ceren's user avatar
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-2 votes
2 answers
205 views

Polarity and solubility

I have a doubt about solubility: a molecule is polar when it has a dipole moment that is ≠ 0. Very often it is said that like dissolves like, that is, that polar substances dissolve in polar solvents, ...
Luckenberg's user avatar
2 votes
0 answers
130 views

Thermodynamics of borax dissolution

I'm currently experimenting with the dissolution of borax $\ce{Na2B4O7.10H2O}$. The procedure was quite simple, samples of saturated borax at different temperatures are titrated, then the value of $\...
kamikaze's user avatar
-4 votes
1 answer
104 views

Decomposition of Al2S3 in water [closed]

Al2S3(s) + 6H2O(l) → 2Al(OH)3(s) + 3H2S(g) I found this reaction on the web.I am not able to understand why this reaction proceeds from a weaker acid(H2O) to a stronger acid(H2S);contradictory to the ...
I.Bedi's user avatar
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2 votes
0 answers
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DIY Turbidity Standards?

I am trying to help my high school chemistry class make their own turbidity standards to calibrate the arduino turbidimeters they are making. Last year we tried calcium carbonate as it makes a cloudy ...
ionthecat's user avatar
15 votes
1 answer
3k views

What happens if you carbonate ethanol?

The electronics youtuber bigclivedotcom has an on-and-off-again series where he carbonates various types of alcohol and comments on the taste. One thing he's noticed is that the stronger the alcohol, ...
David Given's user avatar
1 vote
1 answer
48 views

Hydrate forms causing complications with gravimetric analysis of ferric phosphate

I'm planning to determine phosphate concentrations in a solution via adding Iron(III) and weighing the precipitated ferric phosphate. However, I read that ferric phosphate has a dihydrous form, which ...
Iron filings's user avatar
0 votes
1 answer
239 views

What is ionic reaction equation for reaction between carbon dioxide and limewater?

Write the ionic reaction equation for the reaction \[\ce{Ca(OH)2(aq) + CO2(g) <=> CaCO3(s) + H2O(l)}.\] I first wrote the complete ionic equation as such: \[\ce{Ca^2+ + 2 OH^- + CO2 <=> ...
youthdoo's user avatar
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