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Questions tagged [salt]

Use this tag for questions relating to salts and their properties.

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Different taste perception of magnesium oxide

Magnesium oxide tastes sweet to me, but when I google its taste I only find text mentioning its bitter taste. How can this be explained? Does anyone else taste it sweet? What is going on? At first I ...
Orca19's user avatar
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2 votes
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Salts solubility and speciation calculations using PHREEQC

I am collecting data from literature for CO2 solubility in aqueous solutions. These are usually synthetic brines and are reported as molalities or wt% of salts or salt mixtures (I have NaCl, KCl, ...
Abdeldjalil Latrach's user avatar
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0 answers
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Why does the solubility of Cerium(III) sulfate in water decrease with higher temperatures? [duplicate]

The solubility of Salt is directly dependent on Temperature and that of gases is independently dependent on temperature. But why does cerium sulfate (a salt) decrease in solubility when temperature ...
Navanieeth TS's user avatar
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0 answers
42 views

Cobalt Nitrate Test

As, $$\ce{ZnCl2 + Na2CO3 -> ZnCO3 + 2 NaCl}$$ $$\ce{ZnCO3 -> ZnO + CO2}$$ $$\ce{Co(NO3)2 -> CoO + 2NO2 +\frac{1}{2}O2}$$ Hence, $\ce{CoO + ZnO -> CoZnO2}$ here, $\ce{Zn_{1-x}Co_xO2}$ (...
Daksh's user avatar
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1 answer
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Solubility of lead carbonate

Lead nitrate reacts with sodium carbonate to form lead carbonate, if sodium carbonate is in excess will the white precipitate of lead carbonate dissolves ? Like in lead nitrate reaction with excess of ...
Nifty's user avatar
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5 votes
3 answers
260 views

Does chromium chromate — Cr₂(CrO₄)₃ — exist?

Is it possible to synthesise chromium(III) chromate/dichromate? The intended formulas are $\ce{Cr2(CrO4)3}$ and $\ce{Cr2(Cr2O7)3}$ and they feature both trivalent and hexavalent chromium. However, ...
user avatar
7 votes
1 answer
524 views

Buildup of white powder where metal has been touching a salt stone

The other day, I opened a box for my cellar I use to store random junk and found this: The pink stone is a salt stone from a pet store. I assume it's NaCl with impurities. The ring is some metal ...
Feuermurmel's user avatar
-2 votes
1 answer
46 views

Hydrolysis of $A_3B$ type weak acid-weak base salt

I know the formulae for weak acid-weak base salt of AB type. A peculiar question made me ask this. Do the formula for derived for AB type also hold for A3B type sal. For example: This is the question, ...
Aurelius's user avatar
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0 answers
35 views

Regarding Hinsberg reagent, potassium salt of primary amine soluble in base become insoluble after acidification?

Distinguish between ethylamine, diethylamine and triethylamine by using Hinsberg's reagent? Ans. This reaction is useful for the distinction of primary, secondary and tertiary amines. (i) Primary ...
JUA's user avatar
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2 votes
1 answer
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Making an UV inactive salt UV active during purification of charged anion with HILIC purification?

In the context of a purification setup I am asking myself the question: Can a UV inactive charged substance made be UV active by a counter ion that absorbs UV light during a column run? If so, when no ...
raptorlane's user avatar
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2 answers
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Can carbonic acid form a salt with pH < 7?

Please read edit before answering Background I am currently studying in 10th grade. This question appeared in my science exam - Which acid does not form an acidic salt? Phosphoric acid Carbonic acid ...
GameTime With Aryan's user avatar
1 vote
1 answer
27 views

Co(NO3)2 forming colloid in H2O, and Methanol

I was just trying to make a stock solution of some Co(NO3)2 . One in H2O, another in Methanol. Both don't completely dissolve. They're almost dissolved and appear near translucent but when shining a ...
Ahmer Imam's user avatar
-5 votes
1 answer
89 views

Is salt formation catabolic or anabolic? [closed]

In class we learned that catabolic reactions are exergonic. I later checked that the free energy change of salt formation, $$\ce{2Na + Cl2 -> NaCl}$$ has a negative $\Delta G$. What explains this? ...
geneticscodingnoob's user avatar
3 votes
1 answer
168 views

Role of MnSO4 in permanganometric titration

This might sound like a stupid question, but I have been unable to wrap my head around it. Recently in a lab I had to titrate H2C2O4 with KMnO4 in acidic medium (H2SO4). However, in the work, it ...
confusionfromarizona's user avatar
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0 answers
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Products formed on reaction of aqueous solution of iron(III) nitrate nonahydrate

Crystalline iron(III) nitrate nonahydrate, Fe(NO3)3.9H2O, has a very pale violet color. When added to water, the crystals dissolve to form a brown solution. Treatment of this brown solution with ...
Priyanshu Kumar's user avatar
-2 votes
1 answer
89 views

Small (personal) scale sea salt production?

I was looking to try to make a small setup for producing small amounts of sea salt. Ideally a series of evaporation chambers, with a heavy brine as the finished product, that could then be baked. May ...
user139996's user avatar
1 vote
2 answers
88 views

Why wont Al(OH)3 form in this reaction?

I am in grade 11. We were learning qualitative salt analysis and my teacher wrote a reaction on board - $$\ce{Al^3+ +H2O\rightarrow[Al(H2O)6]^3+}.$$ Now as far as structure of the complex is concerned ...
Aleph's user avatar
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2 votes
1 answer
217 views

Why do most sulphate salts have water of crystallization in them?

Looking at most of the sulphate salts (there are so many but just to name some Epsom salt, blue vitirol, gypsum...) they have some amount of water crystallized within them (Epsom salt is $\ce{MgSO4....
some random person's user avatar
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1 answer
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growing flawless NaCl crystals

Simple experiments on the internet show how to grow salt (NaCl) crystals, but the crystals are small and flawed. Several companies sell flawless optics, like windows, made of NaCl, which are ...
Michael's user avatar
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1 answer
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Why is the statement regarding the strength of ionic bonds reasonable? [closed]

In largely ionic compounds (e.g. NaBr and NaI), it seems to be generally true that, the greater the differences of electronegativity between the forming substances (i.e. The compound has more "...
蕭力諶's user avatar
-3 votes
1 answer
568 views

Reaction of ammonium sulfate with an acid?

Consider the following Which statements are properties of an acid? Statement 1: React with ammonium sulfate to form ammonia. Statement 2: Red litmus turns blue. Obviously stataement 2 is false. ...
Bobs's user avatar
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1 vote
0 answers
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Vapor pressure of a weak acid for a solution of its salt

I need to calculate the vapor pressure of an acid in equilibrium with an aqueous solution of its salt. For example, say I have a solution of 40% potassium formate by mass in water at 50°C. How do I ...
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What is the name of the bond between oxygen atoms and Na+ ions when NaCl dissolves in water?

When NaCl (sodium chloride, table salt) dissolves in water, the NaCl molecules break apart. The hydrogen atoms form hydrogen bonds (I think?) with the Cl- ions. What is the name of the bond between ...
Jake Levi's user avatar
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-2 votes
1 answer
176 views

Calculating salinity from sodium and chloride in water [closed]

let me start by saying that I am definitely no chemist, so this question might (or might not) seem trivial to all you professionals out there. I have recently found a brand of carbonated water here in ...
Henrik Hillestad Løvold's user avatar
0 votes
0 answers
41 views

In a flame test, what is being excited? [duplicate]

I have done a flame test with $\ce{NaCl}$ and got the yellow characteristic flame of sodium. I am trying to understand exactly how this yellow color is being produced and when I searched for it, I got ...
Tuskies's user avatar
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0 answers
229 views

Why does molar conductivity of a weak electrolyte exceed that of a strong electrolyte at low concentrations?

My textbook has this graph. The only sort of explanation given is that conductivity increases on dilution because the salts ionise better. Which is incomplete because then the graph for KCl should be ...
Nikunj Mundhra's user avatar
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0 answers
40 views

How to homogeneously mix a very small quantity of a salt in a very large quantity of another salt?

I'm trying to recreate super salt which is a mixture of: 90 parts NaCl 10 parts ...
Mascarpone's user avatar
3 votes
1 answer
192 views

How can I compare the UV/Vis absorption difference after metal ion chelating of crown ether-containing polymer?

Recently I have synthesized the polymer that contains 1-aza-18-crown-6 in the repeating unit. I want to know if there is any UV/Vis absorption difference after the chelation of metal ion. Considered ...
Krang Lee's user avatar
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2 votes
0 answers
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How can I find vapour properties of a compound molten salt?

I'm carrying out thermal-hydraulic simulations of the Aircraft Reactor Experiment (a nuclear molten salt reactor) based on circulating molten fuel salt: NaF 53 mol%, ZrF4 41 mol%, UF4 6 mol%. While ...
Ruggero Rosselli's user avatar
5 votes
3 answers
586 views

By what mechanism might the decarboxylation of sodium benzoate in the presence of heat and sodium lye occur?

I am trying to get into chemistry and I saw a video by Nile Red in which powdered sodium benzoate and sodium hydroxide are mixed and heated and a reaction proceeds as follows: $\ce{NaOH (s) + ...
EatingTechnobladesRemainsAt3am's user avatar
0 votes
0 answers
62 views

Elegant and fast way without chromatography to remove fluoride ions from water phase without contamination of the polar water soluble product?

I have a challenging purification routine. I want to remove fluoride from an aqueous solution, my product is a phosphonic acid, which is readly water soluble and an anion. The anion is about 200 Da in ...
raptorlane's user avatar
-5 votes
2 answers
67 views

Can you infer toxicity of an ionic compound based on the toxicity of its ions in other configurations?

Suppose I have two ionic compounds: "NaY" and "XCl". If these were both 'safe' to eat, would it be true that ...
alex_danielssen's user avatar
2 votes
1 answer
420 views

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 ...
Dead Scissors's user avatar
1 vote
2 answers
413 views

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 ...
Mailbox's user avatar
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0 votes
3 answers
378 views

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 ...
Padmaranjan Rout's user avatar
-2 votes
1 answer
189 views

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 ...
Aurora's user avatar
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0 votes
0 answers
832 views

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 network solid. Two ...
Apurvium's user avatar
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1 vote
1 answer
390 views

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 ...
roman m's user avatar
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0 votes
2 answers
416 views

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 $\ce{Sr^{+2}}$?
Shub's user avatar
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1 vote
1 answer
490 views

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 ...
Shane's user avatar
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-4 votes
1 answer
150 views

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 ...
Not My Name's user avatar
19 votes
3 answers
4k views

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" ...
Tom P's user avatar
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-4 votes
3 answers
983 views

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?
gatiskandis's user avatar
-4 votes
1 answer
465 views

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 ...
Shub's user avatar
  • 408
-2 votes
1 answer
333 views

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 ...
HaoQi Li's user avatar
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2 votes
2 answers
146 views

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 ...
Aley20's user avatar
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2 votes
1 answer
157 views

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 $0.01$ ...
Aley20's user avatar
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0 votes
1 answer
170 views

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 ...
Adrian's user avatar
  • 39
0 votes
1 answer
48 views

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 ...
Mikkel Rev's user avatar
-5 votes
1 answer
56 views

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: ...
abc's user avatar
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