Questions tagged [salt]
Use this tag for questions relating to salts and their properties.
28
questions
-4
votes
0answers
15 views
Are there factors that affect the yield of salt in NaOH + HCl --> H2O + NaCl [closed]
Are there any factors or changeable variables that may result in a higher salt yield in the neutralization of hydrochloric acid and sodium hydroxide?
0
votes
1answer
38 views
Monosodium Diphosphate (NaH3P2O7) Preparation
I looked on wikipedia for an answer but I couldn't even find a page for this salt, a subsequent google search didn't further enlighten me.
Does any one know how monosodium diphosphate can be prepared?
11
votes
2answers
1k views
How to differentiate between iron and sodium flames?
According to my textbook, when a flame test of an iron salt is performed, it produces an orange, mostly yellow flame. Sodium salts also produce a yellow flame.
As the colours of these two flames are ...
5
votes
2answers
445 views
What is happening when KCl burns in a bunsen flame? [closed]
I did the experiment to qualitatively observe the different colours given off by different salts when placed in a flame.
But what is actually happening to the salt ?
Take $\ce {KCl}$ for example.
Does ...
0
votes
1answer
47 views
Why isn't auto ionisation of water considered when we find the pH during salt hydrolysis?
$\ce{H+}$ concentration from the auto-ionisation of water is $10^{-7}$
If we have $\ce{HA}$ as weak acid and $\ce{BOH}$ as weak base having $\mathrm pK_\mathrm{a} = 3.2$ and $\mathrm pK_\mathrm{b} =3....
0
votes
1answer
62 views
How are diazonium salts prepared without self coupling
While preparing diazonium salts, what prevents the freshly formed diazonium salt from reacting with the still unreacted amines left in the solution and perform diazo coupling?
If this happened then ...
0
votes
1answer
29 views
Which salt is a surfactant and lowers the surface tension of the water? [closed]
I am doing my experiment on the surface tension of the water. How to show the decrease of surface tension of water with the increase in the concentration of salt? Is there any salt that lowers the ...
0
votes
1answer
32 views
How does the surface tension of water decrease with an increase in the concentration of NaCl?
Can anyone help me with the theory of surface tension? My chemistry experiment is related to the surface tension and concentration of NaCl. I am confused about my hypothesis. On the internet, I found ...
4
votes
1answer
178 views
Why is the test for sodium as dihydrogen antimonate so specific?
I have been attending lectures of salt analysis in my college. We are at group 6 cations or also known as group zero cations, namely $\ce{NH4^+}$, $\ce{K^+}$, $\ce{Na^+}$, $\ce{Mg^2+}$.
The lecturer ...
2
votes
0answers
33 views
Why I get acidic solution at brine anode?
I have decomposed $\ce{NaCl}$ solution (brine) with electrolysis and yield $\ce{NaOH}$ at cathode, at anode I got acidic while expected was $\ce{NaClO}$ (alkaline) if it is $\ce{HOCl + HCl}$. Where ...
1
vote
0answers
40 views
What happens when you burn salt in paraffin
My 9 year-old son and I tried to do some extremely amateur flame testing...
We lit a paraffin burner [a little tin of paraffin jelly that came with a marshmallow 'smores' kit!] and sprinkled on about ...
2
votes
0answers
31 views
How to calculate the pH of solutions of amphoteric salts? [duplicate]
I've been trying to understand how to calculate the pH of solutions of amphoteric salts, but I just can't figure it out. So, I've seen that it is commonly explained like this (example for a solution ...
3
votes
1answer
60 views
Alkoxide metathesis
I am attempting a synthesis for acetylacetone. The preparation I wish to carry out is described on orgsynth by condensation of acetone and ethyl acetate with a base catalyst.
The problem for me is ...
5
votes
0answers
45 views
What acids, solvents is lithium-6 fluoride soluble in (other than HF)?
$\ce{LiF}$ is quite insoluble in water, and I'm trying to use some water-soluble acid or solvent to dissolve $\ce{^6LiF}$ (95% enriched) in. I'm not a chemistry person, I'm a radiation detection ...
0
votes
1answer
104 views
Are there any tasteless edible salts? [closed]
I saw on Youtube a video where caffeine was extracted from Red Bull using dichloromethane. However, due to dichloromethane tendency to form emulsions with liquid, an inefficient method was used to mix ...
-3
votes
1answer
76 views
Reaction Of Carbonic Acid With NaCl [duplicate]
I was just wondering if it was possible for anyone to specify what reaction conditions are required for the reaction between $\ce{H2CO3}$ (Carbonic Acid) and $\ce{NaCl}$ (Sodium chloride)?
Does this ...
1
vote
1answer
40 views
How to write the formula of a mixed metal salt?
I suppose the formula of the Sulphate salt of Sodium & Potassium is $\ce{KNaSO4}$ as the Pubchem site says so.
So, is there any rule that in the formulae such mixed metal salts we need to write ...
0
votes
1answer
46 views
How do I calculate the humidity inside sealed containers containing mixing salts?
At $\pu{25 ^\circ C}$:
saturated Magnesium chloride $\ce{MgCl2}$ keeps humidity 33% inside sealed containers.
saturated Sodium chloride $\ce{NaCl}$ keeps humidity 75% inside sealed containers.
I ...
0
votes
1answer
25 views
How does pressure influence the dehydration of salts?
It's well known that the boiling point of a substance increases with pressure. I was wondering if something similar happens with hydrated salts and the temperature at which they dehydrate.
I mean, if ...
0
votes
1answer
35 views
Why does Sodium Hydrogen Sulfate (Sodium Bisulfate) produce moisture?
In my chemistry lab, I have a vial of Sodium Hydrogen Sulfate (Sodium Bisulfate). I've noticed that when I take a spoonful using a spatula, the spatula gets covered in many tiny droplets, and the lid ...
4
votes
1answer
176 views
Can ionic compounds dissolved in organic solvent conduct electricity?
Ionic compounds dissolved in water, as an aqueous solution, can conduct electricity.
Can they conduct electricity if they are dissolved in organic solvent?
1
vote
2answers
111 views
Can separated and purified substances be obtained from a chromatogram?
I am studying chemistry, and I am learning about chromatography.
But I am confused about how chromatography is used to ‘separate and purify’ substances.
I have learnt about chromatography paper, ...
0
votes
2answers
2k views
Salt Bridges/Porous Disks
I am slightly confused about the concept of a salt bridge/porous disk. I understand that these are necessary in a galvanic cell since there is a charge buildup and the salt bridge and porous disks ...
0
votes
2answers
532 views
Remove only salt from salt water
I have a bottle of salt water I collected on a local beach. I want to see what is in it, apart from water and salt. If I boil the whole bottle and wait for it to evaporate, mostly salt will remain. I ...
2
votes
1answer
164 views
Why is brine solution more effective than granular salt in melting ice on a surface?
Why is a brine solution consisting of a small fraction of salt in water, more effective in melting ice on a surface, than just pure salt?
2
votes
1answer
1k views
How to use this salt analysis chart to determine the cations present in a given solution?
With the only possibilities being $\ce{Ba^2+, Ca^2+, Cu^2+, Fe^2+, Fe^3+, Pb^2+}$, what cations are present in a solution which:
a) Forms a white precipitate with sulfate and with fluoride, no ...
2
votes
2answers
2k views
Table Salt vs Kosher Salt difference
Does kosher salt has a different structure than regular table salt or it is an issue of crystals size?
Why some recipes want us to use one instead of another?
2
votes
1answer
573 views
Salt Hydrolysis
Referring to this, when "hydrolysis of a salt" is its reaction with water:
How is it that both the cation and anion of the salt are reacting in an equal amount with water?
To state this specifically ...
