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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 NOx gases [closed]

Are the oxides of nitrogen (such as $\ce{NO}$ and $\ce{NO2}$) emitted from the exhaust of a diesel engine soluble? If so, in what solvents is it soluble? I want to analyse the nitrogen oxides in the ...
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Non-polar molecules are soluble in non-polar solvents (hexane) but not in water, Why?

My book says that non-polar simple molecular substances can dissove when added to a non-polar solvent, such as hexane due to intermolecular forces forming between the molecules and the solvent. ...
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180 views

Suspension or Solution

Tomorrow I have a science test, and in it there are some mixtures, and we have to identify whether they are a solution, a suspension or a colloid. Is there an easy way we can identify this WITHOUT ...
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906 views

How to remove paraffin wax drop from cam lense glass?

When I put a my cellphone on a table for charging, some drops of paraffin wax were laying there which I couldn't see. After some time during charging, heat melted the paraffin wax and it stuck on the ...
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Which is more soluble in water, HF or SO2?

I was wondering which is more soluble in water, hydrogen fluoride or sulfur dioxide? Since $\ce{HF}$ will hydrogen bond to other HF particles (as opposed to $\ce{SO2}$ dipole-dipole attraction). ...
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1answer
424 views

Solubility of epinephrine in water

Do you know how can I dissolve epinephrine in water? because it is insoluble in ordinary situation. When I decreased the pH by $\ce{HCl}$ it really worked but I need pH=7 to continue my experiment. ...
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450 views

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 ...
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1answer
46 views

How to to test the concentration of melatonin in a strong acid?

If a small tablet of melatonin was coated with a substance to ensure a slow dissolution in water and was then placed in a strong acid, neglecting the limits imposed by maximum saturation, it would ...
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74 views

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 ...
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1answer
1k views

How to dissolve chalk (CaCO3)?

I've read that vinegar can dissolve $\ce{CaCO3}$, I know that extreme heat can decompose it, but how to dissolve $\ce{CaCO3}$ at home? I need to dissolve chalk in my home because of repairing ...
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700 views

What is meant by “fairly” when used as a quantifier for the solubility of a chemical?

While doing homework and I found a statement that says a chemical is fairly soluble in water, but I do not understand what this means. However, I know that when things are soluble in water they tend ...
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231 views

Why are some oxides neutral?

Currently, I'm under the understanding that non-metal oxides with a low oxygen:element ratio are neutral e.g $\ce{CO}$, $\ce{N2O}$, $\ce{NO}$, $\ce{O2F2}$ etc. I have also heard that it is because the ...
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How to calculate the solubility of lead (II) carbonate in water, given that bicarbonate will also form?

Calculate the solubility of lead (II) carbonate, $\ce{PbCO3}$, ($K_{\mathrm{sp}} = 1.5 \times 10^{-15}$) in water, given that carbonate is a stronger base than water, so will also form bicarbonate. ...
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258 views

Mutual solubility of water and hexane [closed]

The question says that the value of mutual solubility of water and hexane is small. Consult bibliography to find it out. I can't find it and I'm also concerned as to why the question doesn't ...
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899 views

In which solvent is AgBr least soluble?

The solute $\ce{AgBr}$ is least soluble in A $\ce{H2O}$ B $1.0~\mathrm{M}\ \ce{FeBr3}$ C $1.0~\mathrm{M}\ \ce{CaBr2}$ D $1.0~\mathrm{M}\ \ce{AgNO3}$ I'm confused as to why the ...
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1k views

Solubility of white phosphorus

Why is white phosphorus soluble in $\ce{CS2}$ but red phosphorus not? Is it something in relation with the structures of both? Please explain.
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Solubility of NaCl in water [duplicate]

I learned that solubility of substance increases with increase of temperature. But I came to know solubility of NaCl doesn't increase when temperature is increased . So what is the reason for this ...
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2answers
695 views

How does the composition of a mixed solvent affect solubility?

I am trying to find out how varying the proportion of each solvent in a binary (water/ethanol) solvent solution affects the solubility of an organic acid. I know the solubilities of the acid in each ...
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1answer
40 views

Expressing solubility in binary solvents with non-additive volumes

I have experimentally obtained data that shows the molarity of a saturated solution in mixed solvents, with different proportions of solvents. The issue here is that the two solvents (water/ethanol)...
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2answers
207 views

Fluoride concentration in LiF and CdF2 solutions

Trying to learn how to use $\ce{K_{\mathrm{sp}}}$ values and not understanding. See question below: Two saturated aqueous solutions are prepared at $\pu{25^\circ C}$ Solution1 is made by ...
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70 views

Removing iron from solution in organic synthesis

I am performing methylation at the benzene ring using Fenton's reagent. After performing the reaction in acidic pH, I increase the pH of the solution to 10 using sodium hydroxide solution to ...
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46 views

What are the thermodynamic limiting factors of solubility?

For a substance to be soluble, the substance has to form a product with the solvent that is more thermodynamically stable, right? That's why salt disassociates into Na+ and Cl- right? Now, all such ...
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77 views

Solubility of salts

A saturated solution is prepared at 70 °C containing $\pu{32.0 g}~ \ce{CuSO4.5H2O}$ per 100 g solution. A 335 g sample of this solution is then cool to 0 °C so that $\ce{CuSO4.5H2O}$ crystallises out....
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What exactly is going on in this reaction: sodium bicarbonate (supersaturated aqueous), isopropyl alcohol, and acetic acid (vinegar)?

I had observed this reaction by playing around with vinegar and baking soda and do not completely understand it. Everyone knows that baking soda and vinegar goes crazy and starts creating carbonic ...
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1answer
410 views

With a partition coefficient how do you decide which solute concentration is the numerator?

Kpc = [X(in solvent A)]/[X(in solvent B)] I realise that Kpc is actuallly a ratio but when you need the numerical value it has to be treated as a fraction. When it has to be treated as a fraction ...
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116 views

Is it possible to have same mass and volume for a solvent and its solution

Is there any solute-solvent interaction possible, in such a way that a solvent with mass X grams and volume Y litres, and a solute with mass A grams and volume B litres, to form a solution that has ...
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51 views

How do I turn room temperature water into boiling water for drinking using an chemical/additive?

I am trying to create instant boiling water using a chemical of sorts, so that it can be consumed by a human. For example; someone could make tea without a kettle or any available water heating ...
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104 views

How can I clean CrO3 (chromium trioxide) from carpet?

Is it dangerous a if small amount of $\ce{CrO3}$ or chromium trioxide is on the carpet? I tried washing it with water but it wont dissolve in water how can I clean it?
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1answer
997 views

Intermolecular forces between carbon dioxide and water

I'm wondering which intermolecular forces will exist between carbon dioxide and water. Instinctively, I would expect there to be only dispersion forces between the 2 molecules, because carbon dioxide ...
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1answer
4k views

Solubility order for alcohols

Order for solubility of isomeric alcohols in a book was given as: Primary alcohol >Secondary alcohol >Tertiary alcohol After this I found a question as : 1) Which is more soluble in water? (a) 3-...
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1answer
3k views

Why is phenol soluble in sodium carbonate but not in sodium bicarbonate?

The original question was basically to predict which of sodium carbonate or sodium bicarbonate can be used to distinguish between phenol and benzene. I was sure that phenol neither reacts nor ...
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106 views

Gas solubility in water

Good morning, I know that Henry's law describes the gas solubility in water with partial pressure of a specific gas. For example the oxygen concentration in water, under atmospheric pressure, is $\...
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1answer
2k views

Differences between miscible and soluble

What are the differences between soluble and miscible? So far I found this (page 3 http://faculty.sites.uci.edu/chem1l/files/2011/03/D01MANmiscibility.pdf): soluble=solid dissolves into a liquid ...
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Removing potassium chloride crystals from a mineral composed of manganese dioxides

How can I remove crystals of potassium chloride from a mineral composed of manganese dioxides? Hey, i'm a high school student trying to do a good cryptomelane sample to use in my scientific project. ...
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466 views

Can using isopropyl alcohol on a zirconium oxide ceramic knife harm or dissolve/degrade it? [closed]

Can using isopropyl alcohol to clean a zirconium oxide ceramic knife harm or dissolve/degrade it?
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3answers
828 views

Separating boric acid from sodium chloride

I want to create some boric acid with borax in the following reaction: $$\ce{Na2B4O7·10H2O + 2 HCl → 4 BH3O3 + 2 NaCl + 5 H2O}$$ However as you can see, the leftover solution will contain a mixture ...
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1answer
8k views

Alkali metal carbonates, their thermal stability and solubility

From Li to Cs, thermal stability of carbonates increases. From Li to Cs, due to larger ion size, hydration enthalpy decreases. So, solubility should decrease from Li to Cs. But, experimentally, order ...
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What is the order of addition required to dissolved flavor oil (volatile oil) to an aqueous solution using castoil (cremophor rh 60)

What is the order of addition required to dissolved flavor oil (volatile oil) to an aqueous solution using castoil (cremophor rh 60). If the order of addition is not followed what will happen to the ...
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1answer
3k views

Solubility of urea in water

I'm hoping that this isn't too obvious of a question (it's been awhile since I've taken chemistry), but I was looking at the solubility table on Wikipedia, which gives the solubility as grams per 100 ...
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2answers
650 views

When pH increases, does the effect of increased [OH-] or reduced [H+] control precipitation of CaC2O4

The image below shows how oxalic acid dissociates and forms calcium oxalate ($\ce{CaC2O4}$ or $\ce{Ca(OOC-COO) as written below}$). When the pH increases, does this result in more or less $\ce{Ca(OOC-...
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1answer
41 views

Can liquids be made a lot purer than by fractional distilation?

Suppose you have a fused quartz tube with one closed end coiled into a spiral with a diameter of more than 10 m and you submerge it into a mixture of water and ethanol in a way that gets rid of all ...
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1answer
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Solubility of oxygen in water with temperature, why does the change in solubility decrease around 40 °C?

Better set in context using a graph: The solubility seems to fall quite persistently from 0 °C to 30 °C, then gradually slowing down in fall, then dropping faster and faster from 80 °C. Why does that ...
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69 views

Is there a substance that is hard (ideally abrasive) in solid form but would dissolve in water?

doing some research for a dishwasher / dish cleaning product and interested in any compounds that could be fashioned into a brush or other abrasive form and then dissolve and wash away with the water ...
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2answers
404 views

How to dissolve cat hair without effecting fabric?

I am wondering if it is possible to create some sort of a solution that will dissolve cat hair (or dog hair), but, is not harmful to the surrounding fabric? I am picturing a solution you would soak a ...
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1answer
1k views

Whose solubility increases with increase in temperature?

Solubility of which among the following substances in water increases slightly with rise in temperature? (a)$\ce{KBr}$ (b)$\ce{KCl}$ (c)$\ce{KNO3}$ (d)$\ce{NaNO3}$ Answer is (b). ...
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853 views

Effervescence with NaHCO3

How To find which organic compound gives effervescence when reacts with $\ce{NaHCO3}$? Specially in case of phenols, which one reacts and which does not? According to my professor, all acids stronger ...
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What can be products when aluminum sulfate is dissolved in water [duplicate]

This is a follow up from an answer to one of my questions (here is the link) I tried dissolving aluminum sulfate in pure distilled water. I used the same concentration: 12 mL of aluminum sulfate in ...
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2answers
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If capsaicin is insoluble in water, what makes chilli water taste spicy?

I have always been told that the 'heat' from chillies came from capsaicin which is oil based. Recently I began wondering how environmentally friendly chilli based insecticide/repellent sprays could ...
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1answer
461 views

How can I dissolve nickel(II) oxide?

To insulate $\ce{Pt}$ wire heaters, I plated them with $\ce{Ni}$. After switching on the heater for the first time, green $\ce{NiO}$ is formed which is insulating and protects the $\ce{Pt}$ from ...
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Is Henry's Law sufficient for calculating CO2 solubility?

$\ce{CO2}$ reacts with water which is why it enters and exits solution slower than other gasses (if I understand correctly this is why carbonated drinks bubble gradually instead of all at once). ...