Questions tagged [salt]
Use this tag for questions relating to salts and their properties.
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Solubility of Ammonium Nitrate [closed]
Ammonium nitrate is readily soluble in water at room temperature, although its lattice energy (Approximately 3655 kJ/mol) is much greater than its hydration energy (Approximately -382 kJ/mol for ...
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Calcium nitrate tetrahydrate oxidising properties [closed]
My Question is if the tetrahydrate form of calcium nitrate also has oxidising properties or if this goes only for the anhydrate
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Insoluble ammonium salts?
Most solubility rules I can find state that "most ammonium salts are highly soluble". I wonder if there are actually any insoluble salts containing the ammonium ion. An answer here states ...
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How to separate the salts within homemade sea salt
Goals
There are a few things that I'm looking to do:
Separate salt from seawater via some evaporation technique.
Separate the each of the major salts from the resulting sea water to get each into ...
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Reaction between Ammonium chloride, Concentrated sulphuric acid and copper turnings
During a salt test, dry test for acid radical , mixed ammonium chloride with concentrated sulphuric acid and heated the mixture and added copper turnings to the mixture, the mixture on heating turned ...
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Disposal of Aqueous Magnesium Salts
Where can I find out where (specifically) aqueous magnesium chloride and aqueous magnesium bromide can be disposed? I was trying to find out whether solutions could be diluted and washed down the ...
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How heating of copper sulphate pentahydrate (blue vitriol) can be explained?
The chemical formula of copper sulphate pentahydrate, $\ce{CuSO4\cdot 5H2O}$ does not give information about its true structure because it's only an empirical formula.
It forms a polymeric structure. ...
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Why water volume went up by almost the same amount after adding salt?
Seems like it's a well-known fact that adding salt to water will not raise the water volume by much (e.g.: Why there is no change in water level when salt is added? )
I've done this experiment at home ...
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Differentiating Ca2+ and Sr2+ ion
$\ce{Ca^{+2}}$ and $\ce{Sr^{+2}}$ both give a bit similar red color in flame test. What is the easiest way (chemical test) to distinguish $\ce{Ca^{+2}}$ and $\ce{Sr^{+2}}$?
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Why can't we use concentrated acids to test for carbonates?
According to BBC Bitesize:
Carbonate ions, $\ce{CO_3^{2-}}$, are detected using a dilute acid. Bubbles are given off when an acid, usually dilute hydrochloric acid, is added to the test compound.
Is ...
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Putting salt and ice in a can causes frost to form, while doing this again without salt will only cause condensation, why?
If this is the wrong place to ask my question, then blame my friend, and also tell me where to post this since I'm new. Anyway, we did an experiment in class where we took 2 soda cans with no top. We ...
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Are salts (e.g. NaCl) soluble in liquid metals?
I'm curious whether any salt would at all dissolve in a liquid metal, such as gallium, mercury, or some other metal in the liquid phase?
A Google search of "solubility of NaCl in Mercury" ...
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Can NH4Cl react with HNO3 to give NH4NO3? [closed]
I assume that the reaction would be
$\ce{HNO3(aq) + NH4Cl(aq) -> HCl(aq) + NH4NO3(aq)}$
But will this reaction really happen?
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Salt analysis (cation) [closed]
I'm reading about salt analysis and I've got some questions:
Image source: pdf
Why are some sulphides (group II) precipitated in presence of HCl while others (group IV) in presence of ammonia ...
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How fast does potassium hydroxide turn into potassium carbonate, in the case of leaked AA or AAA batteries? [closed]
When batteries start to leak, the highly toxic potassium hydroxide comes out, but it reacts with the carbon dioxide in the air and turn into the less toxic potassium carbonate salt. I'm wondering how ...
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Find the added volume of HCl so that the ions separate
Suppose we have a 10mL solution that contains 0.02M $\ce{Ag^+}$ and 0.04M $\ce{Ba^{2+}}$. a) Find the necessary volume to be added of $\ce{HCl}$ to separate all the silver. (Assume to be separated if ...
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Find the minimum concentration so that it doesn't precipitate
Calculate the solubility of silver chloride.
a) in pure water
b) Calculate the minimum concentration of ammonia that prevents precipitation in a solution that
contains $0.1$ mol of AgNO3 and $0.01$ ...
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What happens when you mix a salt with a strong base? [duplicate]
This doesn't come off from a question but it came to my mind. Take an example of $NH_4Cl$ as the salt and $NaOH$ as the strong base. What would happen to the pH for example? I'm guessing that the salt ...
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How can I find references related to pH for water solutions of salts [closed]
I have searched the web pretty much all day because I want to work out what the pH will be of various salts when they are in water solution. I have searched for references related to pKa and pH, but I ...
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Why is 10 times phosphate-buffered saline more acidic (~6.9) than 1 time phosphate-buffered saline (~7.4)? [closed]
Recently, I've been told that similar pH shift (of about 0.5 units) was observed with 20 times NPS solution as well.
In case of NPS the authors provide the following recipe for the 20 times solution:
...
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How do salts affect pH? [closed]
Since pH measures the effective proton concentration, it is the concentration of a very specific type of cation. I know if salt reacts with water, it will affect pH. But my question is, how does the ...
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Getting magnesium chloride gunk off a wood shelf
I have a situation. Some magnesium bath salts got left on a wood shelf in my bathroom in a bag that was not closed. Being hydroscopic, it sucked up a ton of water, and then spilled onto the wood. ...
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How long does it take for zinc oxide powder and heinz vinegar to fully react into zinc acetate at a 1:2 ratio of zinc:heinz vinegar? [closed]
How long should I leave a solution of zinc oxide powder and heinz vinegar in order for it to react as completely as possible? The solution is 1(zinc oxide powder):2(heinz vinegar) in a glass flask. ...
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Doubt on the process to determine the amount of precipitate of a salt, product of a reaction between two solutions
I am attempting to determine whether there is going to be the formation of a $\ce{AgCl}$ salt precipitate if the following two solutions were to be added together:
$50mL$ of $\ce{NaCl}$, $0.04M$,
$...
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Can other metal salt compounds besides copper sulfate/zinc sulfate be used to create chlorophyllin? E.g. the magnesium center is replaced
There has been a lot of research done into sodium copper chlorophyllin. The synthesis is quite simple and can be done at home. It involves extracting the chlorophyll, saponifying the solution, adding ...
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Will the solid formed after dehydration of a disodium hydrogen phosphate + sodium hydroxide solution be hygroscopic at STP?
Given a solution consisting of disodium hydrogen phosphate + sodium hydroxide (approaching a pH of 12), will the solid formed after dehydration of the solution be hygroscopic at STP? Which salts are ...
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How can I transform Thiamine sulfate to Thiamine hydrochloride?
I have got thiamine sulfate and want to have thiamine hydro chloride. Can I obtain it by dissolving thiamine sulfate in water and adding calcium chloride water solution as long as calcium sulfate will ...
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How to synthesize sodium metabisulfite?
I am looking for ways to produce sodium bisulfite from $\ce{SO2}$ and $\ce{NaOH}$, but sources talking about $\ce{Na2S2O5}$ is quite scarce.
Do you have any recommendations of articles, books or any ...
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What happens to undissolved salt during electrolysis of brine?
Say we have a container of brine with excess NaCl in the anode, and a seperate container with just water at the cathode. Both are connected by a salt bridge. If we perform electrolysis, Sodium ions ...
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When is NaHCO3 formed in the reaction between H2CO3 and NaOH
I my textbook, in the section on basic salts, NaHCO3 is stated as an example. However, as to how its obtained, the text mentions that it's just obtained by the reaction between H2CO3 and NaOH, hence ...
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Chemical name of a solution of ions such as salt dissolved in water [closed]
Is there any chemical name for the solutions of ions in water? I want to find out the name given to an aqueous solution of ions such as $\ce{Na+}$ and $\ce{Cl-}$ ions in water. Would it be something ...
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Increasing the weight in metal with salt? [closed]
Is it possible to increase the weight in metal (such as bronze) by exposing it, or soaking it in salt?
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How to synthesize anhydrous zinc(II) nitrate?
I'm interested in making anhydrous zinc nitrate. I know it decomposes fairly rapidly if you heat it. It is also soluble in ethanol.
Would another desiccant or a molecular sieve do the trick? Or maybe ...
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How to theoretically determine if a hydrate of a salt precipitates out of solution
In a solid-liquid extraction simulation process, there are multiple salts that precipitate in the solution. But how do I determine if these salts are hydrates or not? To give an example:
$$\ce{Ca3(PO4)...
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Why is there a difference in crystal shapes of sodium chloride (NaCl) and potassium chloride (KCl)?
According to Sodium chloride and Potassium chloride:
Sodium chloride (NaCl) crystallizes, among various other shapes, into octahedron and tetragonal pyramid shapes which are absent in potassium ...
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Liquid water barrier and water vapor permeable membrane sheets
I am running an experiment where I am trying to maintain the relative humidity of a thermally insulated chamber. I am successfully able to hold the humidity using different salt solutions (NACL-75% RH,...
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Isolating potassium chloride from sodium chloride and potassium hydroxide
Assume that you have an aqueous solution of sodium chloride and potassium hydroxide. Is it possible to isolate potassium chloride from this?
$$\ce{Na+(aq) + Cl-(aq) + K+(aq) + OH-(aq) -> Na+(aq) + ...
user123142
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How can I get a breakdown of different salt contents in a fertilizer solution?
I am experimenting a lot with hydroponics i.e. growing plants in a liquid solution. From time to time, I would like to do a check on what is the current salt level for major salts (ions) in parts per ...
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Why does my sea salt have a best by date? [duplicate]
Seems like it should be good for thousands of years, if not millions.
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What happens when we react a sulfate salt solution with barium chloride and the formed precipitate with conc. hydrochloric acid?
When I performed this experiment in my school, I could not observe any sort of remarkable change (I must have performed it incorrectly or something).
I wanted to know what should have been the correct ...
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What is the product of the following reaction(different sources give different answers) [closed]
$$\ce{FeS +dil HNO3}$$
$$\ce{FeS +conc HNO3}$$
I got different answers to these reactions in different sources
Source1 Jd lee:
Source 2 Op Tandon:
Can anyone please explain which is the correct one ...
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Why is sodium bisulfate acidic? [closed]
So, as I know, the rule says that if you get a salt from strong acid and strong base it should be neutral. In this situation with sodium bisulfate and also trisodium phosphate we get an acid salt, ...
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Copper turned silver-color with crystalized soldered joints. How did this happen?
Please remove if this question if not allowed on this sub-exchange. I can post elsewhere if suggested.
I was working on a small project requiring cleaning and polishing copper pipe, but found ...
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Salt extraction from water without affecting mercury concentration
I am looking to theoretically bio-analyze a water sample regarding its mercury concentration from both sea and lake water using a biosensor with an enzyme biorecognition element. However, a big issue ...
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How does one obtain a CuCl2 (solid or in solution with water) from a solution with HCl
I have a solution of CuCl2 and with HCl, and I want to seperate CuCl2 from the HCl. I cannot boil or distill the solution, since I don't have a fume hood or access to a safe enough space outdoors. So ...
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How does ethanol separates salts from proteins [closed]
Grad student here messing around with famed TRIzol isolation protocol and looking to optimize the protein yield at the end. There are more direct ways to get protein from a sample but I like getting ...
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Burning wood with ammonium chloride
There is a method where you use a water solution of ammonium chloride to paint some pattern or write some text on a piece of wood and then blow on it with a heat gun. The result is that the pattern ...
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Forming conjugate acid of borate anion via protonation
I am a biologist so please forgive me as I likely won't be as rigorous as a professional chemist. I am using the RDKit package to extract organic molecules from salts, where one ion is organic and the ...
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Low temperature sodium salt eutectic [duplicate]
I have a need for a sodium salt that melts below 265 degrees celsius, which will be exposed to liquid sodium metal. The anion is not important, only that it has a sodium cation. I have done a lot of ...
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lowest melting point of alkali salts [closed]
I want to make the alkali metals sodium and potassium through electrolysis of molten salts. However, I only have the ability to heat stuff up to about 260 degrees Celsius.
What would be the lowest ...
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