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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21 views

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 ...
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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 ...
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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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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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.
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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 ...
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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 ...
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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 ...
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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 ...
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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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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 ...
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Does π 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 $π$ values of substituents (analogous to Hammet $σ$ values) change according to the specific environment ...
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3answers
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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. ...
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4answers
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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 $...
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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 ...
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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 &...
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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 ...
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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 ...
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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 ...
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3answers
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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 ...
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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 ...
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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. : /
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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 ...
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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 ...
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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 ...
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1answer
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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 ...
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1answer
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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 ...
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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, ...
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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 ...
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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 $20^{\circ} \pu{C}$...
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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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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 ...
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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 60°C by heating and the solution was cooled to 20°C. How many grams of KNO3 were deposited? The solubility of KNO3 in 100g of ...
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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 ...
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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 ...
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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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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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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 ...
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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 ...
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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, ...
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1answer
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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 ...
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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 ...
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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 ...

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