For questions related to the solubility of compounds in various solvents, especially in water.

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Preparing Saturated Carbon Dioxide

I'm doing a chemistry lab where I'm collecting data to create a solubility curve for carbon dioxide at different temperatures. I'm using carbonated water and my concern is that, by heating or cooling ...
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Wax layer destruction from seed coats

I'm working with some orchid species, and i encounter a specific issue. Some of those species deposits upon their seed coat a wax layer. This layer makes seeds behave in a very hydrophobic way. You ...
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28 views

Solubility in wrong temperature?

I have a question on my chemistry homework that asks for the solubility of zinc oxide (ZnO) in water at 20 degrees celsius I found the solubility, but in 30 degrees instead of 20 0.16 mg/100 mL ...
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30 views

Volume of sucrose (solute) contributing to volume of solution? (solvent = water)

I'm trying to make stock solution of 3M sucrose in water. In 25ml, this is 25.672g sucrose (FW 342.3). However, that mass of sucrose, in the powder, occupies a pretty substantial volume, such that ...
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30 views

Hydrophilic vs water soluble?

Is the term 'hydrophilic' a synonym of 'water soluble' or can you have a molecule that is water insoluble but hydrophilic (or water soluble and not hydrophilic)?
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26 views

(How) can chemistry dissolve boxes?

I am new and want to say 'hello' and ask a practical question; or if it is feasible? I am covered up in cardboard boxes at home: attic and basement full (over years). Hauling them away is by volume ...
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1answer
212 views

Would sodium salicylate dissolve in HCl?

I've been searching around the web and the consensus seems to be sodium salicylate dissolves poorly in HCl because it would form salicylic acid. However, I don't understand why forming salicylic acid ...
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10 views

Mechanism of solubility of cyanoacrylate in acetone?

I would like to know how and why is glue( cyanoacrylate) soluble in acetone? Thank you
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22 views

Can Helium be scented? [closed]

Is it possible to have Helium scented? If so, can it be done in large quantities? I'm interested in using a peppermint type scent.
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Theory of volume contraction in solution

When a solid is dissolved into a liquid, or two solids are amalgamated, their mutual volume will contract. For example, a crystal of sugar having a volume of one cubic inch dissolved into 10 cubic ...
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62 views

Since PbCl2 is insoluble in water, how is it that lead leached from pipes due to Cl- reaction can become ingested?

I have reviewed a discussion concerning the salt content in the Flint River being directly connected to lead being leached from civic water pipes in Flint, Michigan. Wikipedia has a site dedicated to ...
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45 views

Dissolve Silver Oxide

I was looking at how to dissolve silver oxide (in a solvent). I know that monovalent silver oxide will not dissolve in water, but are there any solutions in which monovalent silver oxide will ...
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21 views

Charge:ionic radius ratio

can someone please explain what the charge to ionic radius ratio of a metal hydroxide would mean for its solubility. As in would there be a trend e.g. as the ratio gets larger the solubility product ...
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63 views

How many grams of MnS will be produced?

1 L of a solution (conc.: $\rm 2\times 10^{-3}~M$ of $\ce{MnCl2}$ buffered with $\rm pH=6$ is saturated with 2.5 L of gaseous $\ce{H2S}$ in standard condition. The final volume is 1 L. How many ...
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1answer
45 views

How do I determine which liquids are immiscible with one another?

I am trying to work out which type of ferrofluid I can use to form a weak magnetic seal for a container of liquid photopolymer resin. Is there a mathematical approach to determine what substances will ...
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51 views

Does the salt in the ocean act as a binding agent on sand?

When I walk on the beach, there appears to be an upper layer of the sand that is 'crusty'. This appears to be the opposite of what you see in sand in a dessert setting, where the individual ...
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27 views

Reasoning questions on Solubility

Why is solute dissolved faster in amorphous state and at high temperature? I don't have any idea about the dissolving of a solute in amorphous state but for higher temperature it might be because the ...
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1answer
38 views

Why does ozone have such a large solubility in water?

At $25~\mathrm{^\circ C}$, the solubility of ozone is $109~\mathrm{mg~L^{-1}}$. This is $13$ times higher than the solubility of diatomic oxygen. What causes this?
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23 views

Solubility of Silver Nanoparticles

(i) What happens when you put $\ce{Ag_{10}}$ and $\ce{Ag_5}$ clusters into an aqueous solution of pH = $13$ (ii) What happens when you put $\ce{Ag_{10}}$ and $\ce{Ag_5}$ clusters into an ...
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1answer
60 views

How can I make a fairly saturated copper (II) sulfate solution by heating?

I have an investigation to do for my chemistry class. I'm looking at copper complexes and using ammonia to create a precipitate in the copper (II) sulfate solution, then redissolving the precipitate ...
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1answer
65 views

Why exception is noted in the solubility of lead salts?

There are many exception in the solubility of lead salts like:- Lead sulfate is insoluble in cold water whereas most of the sulfates are soluble in cold water. Lead chloride is also insoluble in ...
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Dry product containing 80% ammonium sulfate, 10% iron sulfate and 10% aluminum sulfate is required to be mixed with water at 65C for 30 minutes

But $20$–$30\%$ after filtering will not go into solution which contains Fe and Al. The solubility of ammonium sulfate is high ($\frac{\rm87~ g}{100~ g}$) and the solubility of aluminum sulfate ...
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53 views

Does adding ice to sparkling mineral water extend the 'fizziness' of the solution before the drink goes flat?

To my understanding the carbonated beverage loses its $\ce{CO2}$ content as gas bubbles which gives the drink its 'fizziness'. The loss of $\ce{CO2}$ occurs due to the low solubility of carbonic acid ...
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25 views

Solubility of carbon dioxide in 1M sodium hydroxide solution?

I know carbon dioxide is soluble and forms carbonic acid but exactly how is solubility measured? How soluble is carbon dioxide in a 1M solution of sodium hydroxide?
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68 views

Lithium compounds with good solubility in organic solvents?

I want to dissolve enriched $\ce{^6Li}$ into a liquid scintillator (made almost purely of di-isopropyl-naphthalene, mixed isomers, with a tiny bit of fluors and wavelength shifters) for enhanced ...
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48 views

Dissociation of benzoic acid

Benzoic acid is a weak acid, which means that it does not completely dissociate in water. I know that the dissociation equation of Benzoic acid is: $$\ce{C6H5CO2H <=> H+ + C6H5CO2-}$$ The ...
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Miscibility of pairwise miscible liquids

If you have a mixture of 3 (or more) liquids which are "pairwise miscible", but which don't react with each other, does that guarantee that the mixture will only have one layer? By "pairwise ...
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22 views

Solubility in hydrogen telluride

Most metals are reactive with $\ce{H2Te}$ but some elements aren't. How can I determine or calculate the solubility for ethane and other substances in liquid $\ce{H2Te}$ ?
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Does low solubility mean to have a solution that has a solubility of less than 0.1 M?

However, something is confusing in this sentence. "Equal volumes of 0.2 M compound A and 0.2 M compound B are mixed." ppt is formed which means low solubility, but why it is it 0.2 M? The Molarity ...
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90 views

Why aren't the copper(II) ions in CuSO4 precipitated by hydroxide ions from water?

From my own experience and literature, I know that $\ce{CuSO4}$ is well soluble in water and dissociates into $\ce{Cu^2+}$ and $\ce{SO4^2-}$. $\ce{Cu(OH)2}$, however, is not: $K_\mathrm{sp} = 2 \cdot ...
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68 views

Solubility of alcohols

I wasn't able to decide between A and D, as both have hydroxides, but the answer is A. How so?
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25 views

Can dissolved salts (or any soluble chemicals, for that matter) 'bump' each other out of solubility?

Will a more soluble substance dissociate, causing a less soluble substance to precipitate out? in equation: AB(s)+ C(aq)+ D(aq)--> A(aq)+ B(aq)+ CD(s) Does that equation go through, under the ...
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246 views

Solubility of Ag3AsO4 in 0.02 M K3AsO4

Calculate the solubility of $\ce{Ag3AsO4}$ in $0.02~\mathrm{M}~\ce{K3AsO4}$ neglecting the activity coefficients. Find the relative error. $K_\mathrm{sp}(\ce{Ag3AsO4}) = 6.0 \cdot 10^{-23}$ I ...
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Polarity and Solubility of Tetracyclone

In one of my organic chemistry experiments, I synthesized tetracyclone (Tetraphenylcyclopentadienone), and we were supposed to dissolve it in DCM to do our TLC. DCM is polar and looking at the ...
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33 views

Solubility product when you add an acid to a solid?

I ran into some trouble when I was resolving some exercises about solubility product principle.The exercise says: A concentrated, strong acid is added to a solid mixture of $0.015\ \mathrm{mol}$ ...
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28 views

Separate Dextrose & Caffeine in water?

Can a dextrose / caffeine powder be (mostly) separated by dissolving in water then filtering the water? Dextrose is readily soluble in water (1-10 parts solvent to 1 part solute). Caffeine anhydrous ...
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70 views

Solubility of cholesterol and phospholipids in acetone

I'm having difficulty with this specific part of an assignment. I know that it is to do with polarities of the different parts of cholesterol and that it is because cholesterol is amphiphilic, but I ...
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25 views

I have two questions regarding equilibrium reaction [closed]

**First question: Here is my approach: ...
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33 views

Solubility of salts of weak acids in lower pH

I know that the solubility of salts of weak acids increases in lower pH , but is there a mathematical proof to support this statement ?
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28 views

How much precipitation occurs for a given ionic product?

Let us say we have a salt AB in water. Suppose the ionic product exceeds the solubility product at a particular temperature. Now, I know that the ions will precipitate out of the solution. My doubt ...
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179 views

I am trying to find the solubility of benzoic acid in different solvents to prepare a liquid-liquid extraction

I need to prepare a liquid-liquid extraction using the partition coefficient (K) of benzoic acid in different solvents and water: ...
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2answers
59 views

Common Ion Effect Calculations

Given a solution with a $\ce{S^{2-}}$ (sulfide ion) concentration of $2.76 \times 10^{-15}$ mol per litre, and $K_s(\ce{FeS})=4.90 \times 10^{-18}$, calculate the solubility of $\ce{FeS}$ in this ...
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3answers
93 views

Solubility Product and Buffers

I've been assigned a homework and the question looks like this :- The ionization constant of benzoic acid is $6.46 \times 10^{-5}$ and solubility product for silver benzoate is $2.5 \times ...
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7 views

How to increase saturation concentration? [duplicate]

Assuming pressure/temperature can't be changed, how would you increase the saturation concentration of Potassium Bicarbonate in water? Is it the same as increasing Ks? I heard about the different ion ...
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97 views

Why does a reaction stop when turning into a solid?

I recently was looking at a question about the volume of carbon dioxide produced when reacting calcium carbonate with dilute sulfuric acid and using nitric acid. In the answer it says that calcium ...
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1answer
168 views

What does H2O + AgI yield? [closed]

What does H2O + AgI yield? How can I predict the product of these two reactants? Apparently there is no reaction as $\ce{Ag}$ and $\ce{I}$ are insoluble. Is this true? I thought it didn't matter if ...
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67 views

Brewing tea with deionized water

I am wondering what efect brewing tea (let us assume for the sake of simplicity it is green tea, brewed at about 80 °C) in deionized water might have on the product. Will the lack of ions in the ...
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214 views

Why does Silver Sulfate not appear to precipitate from a reaction?

Aqueous silver nitrate is mixed with aqueous sodium sulfate. We were asked to perform this reaction in lab in my chemistry class, and we did not observe a precipitant being formed. However, the ...
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49 views

What exactly happens at the critical solution temperature of a phenol water system?

What makes phenol that was turbid go clear beyond the critical solution? We say beyond the critical solution the constituents become soluble. What is the reaction or the exact change involved in the ...
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136 views

Identification of Anions and Cations [closed]

Each of the following samples contains only one of the chemicals indicated. What reagent would you use to identify which of the chemicals is present [i.e., state the chemical? Explain your choice. ...