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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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Are esters and amides soluble in cold acids/bases? [closed]

The main problem I have is that we say amines are soluble in acids because they are bases, and they will thus react with acids. But if A reacts with B, how does that imply A is soluble in B? Yes, ...
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Does “soluble in alcohol” imply ethanol?

Sources like Wikipedia and SolubilityOfThings say that copper (II) acetate is soluble in alcohol. Does that mean any alcohol, or does "alcohol" in this context mean ethanol?
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What is the molarity of a solution made by dissolving 25.63 grams of naphthalene (MM = 128.17g) in 250.0 grams of benzene? [closed]

I don't really understand how to find the amount of liters with benzene in order to find the molarity.
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Is Mg(OH)2 more insoluble than MgCO3?

In removing temporary hardness by boiling, $\ce{Mg(HCO3)}$ is converted to $\ce{Mg(OH)2}$ but not $\ce{Mg(CO3)}$. The answer that I found in our coursebook was that it has a higher solubility product, ...
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What exactly is a solubility product, and what is its use?

What exactly is a solubility product, and what is its use? I've come across this term while reading, and don't have access to anyone who can help me understand this concept.
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Super-saturated solutions

If a solution is super-saturated is it possible to add a substance to it without allowing it to crystallise? Does a change in temperature have to happen and reduce it's saturation if I want to add ...
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Can other substances be dissolved in a saturated solution?

If I have a liter of water fully saturated with sucrose would it be possible to dissolve something like salt or any other substance in the water? Or when the solution is saturated, is it impossible to ...
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Are lithium bicarbonate and magnesium bicarbonate both soluble in water?

Are lithium bicarbonate and​ magnesium bicarbonate both soluble in water? Source: JEE Mains 2017 (National Level Examination of India) Please do cite a reputed source along with your answer. ...
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Definition of “soluble” [closed]

How to define "soluble" in chemistry? For example, in 1:1 v/v, benzene does not mix with water, i.e. insoluble. Common sense. However, in an analytical procedure, it called for making a "saturated" ...
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Is there a free online resource where I can get the solubility of a solute in a solvent?

I'm looking for a online resource that lets me find the solubility at of any solute (e.g Choline Chloride, Sodium Hydroxide, Dextrose) in any solvent (e.g. Ethylene Glycol, Oleic Acid, Isopropanol, ...
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207 views

How to determine the amount of barium in a sample of contaminated water?

Here is the assignment I have: You are working for Matrix Pro - a company involved in analytical assessment and method development for the clean-up of contaminated waters. You received water ...
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337 views

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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205 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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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
465 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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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
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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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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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1answer
805 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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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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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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2answers
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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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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
821 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
46 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
240 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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0answers
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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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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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473 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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1answer
134 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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1answer
53 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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1answer
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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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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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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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1answer
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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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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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898 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
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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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1answer
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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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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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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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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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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 ...