All Questions
Tagged with aqueous-solution ions
12
questions with no upvoted or accepted answers
4
votes
0
answers
254
views
Why does viscosity decrease when divalent cations are dissolved into aqueous solutions of sodium carboxymethylcellulose?
Sodium Carboxymethylcellulose (CMC/NaCMC/Aqualon) is a common product used in many instances for its unique properties, especially its ability to make solutions viscous. It is well known that the ...
- 53
2
votes
0
answers
46
views
Ionic emission spectrum contamination
Imagine that I am trying to identify the presence of ions from among the metals $\ce {Li,Na,K,Ca,Sr, Ba}$ in some solution through their emission spectrum.
By mistake the wire used to introduce ...
- 121
1
vote
0
answers
47
views
how can I predict the rate of water ions precipitation on a surface?
Consider a titanium pot that contains 1kg water with the following ions:
$[Ca^{2+}]=22000$ ppm, $[Mg^{2+}]=1500$ ppm,$[Sr^{2+}]=791$ ppm,$[Na^{1+}]=48000$ ppm,$[Cl^{1-}]=120000$ ppm,$[SO_4^{2-}]=...
- 17
1
vote
0
answers
32
views
Acid/base separation in nanofiltration
How do semi-permiable membranes handle salts that can separate into an acid and a base based on the "rules" of the membrane?
For example, say I have a nanofiltration membrane that rejects ...
- 1,690
1
vote
0
answers
568
views
Why is silver chromate red?
Copper(II) ions are blue and chromate(VI) ions are yellow therefore copper(II) chromate(VI) would turn out to be green because it's a mixture of blue and yellow.
In the same way, silver ions are ...
- 59
1
vote
0
answers
629
views
Calculating the Molarity of an Ion?
I'm completely stuck on this one - I was doing an experiment in a lab and now I cannot find the molarity of an ion in a solution. I've looked everywhere on the web but after 2 hours of searching I ...
- 131
1
vote
1
answer
172
views
Which ions determine ionic conductivity of a salt solution?
Let's take $\ce{ZnSO4}$ salt solution in water for example. So the ions inside my solution will be $\ce{H+}$, $\ce{OH-}$, $\ce{Zn^2+}$ and $\ce{SO4^2-}$.
My questions are:
Is the ionic conductivity ...
- 59
0
votes
0
answers
109
views
Comparative Solubility of Double Salts
Is there a tendency that could be used to generally forecast how a double salt might dissolve in aqueous medium compared to the simple salts of its constituents?
Example:
There is metal A, metal B and ...
- 1,097
0
votes
0
answers
130
views
Different ion effect
I need to have the highest concentration of (bi)carbonate ions in a water solution.
Thus far, my only idea was to use Potassium Bicarbonate (safe and cheap) as it has the highest solubility but it ...
- 19
-1
votes
1
answer
53
views
How can I get create complex metal ion solution such that the majority of the central metal ions only have one specific ligand?
I'm looking for a way to have the ligand, Chloride ion, datively bond with Copper Sulphate.
I understand it is as simple as creating a solution of Hydrochloric Acid and dissolving Copper Sulphate ...
- 217
-1
votes
1
answer
385
views
Can the ions of dissolved salts be physically separated with a strong enough external electric field?
Say you had a arbitrary amount of sodium chloride dissolved in water. Could an external electric field (e.g. the electrically charged plates in Millikan's oil drop experiment) physically pull apart ...
-3
votes
1
answer
111
views
Behavior of ionic salts in solution
The electrons of an isolated sodium chloride bound pair in vacuum reside at a semi-classical level in their ground state, so that the Born-Oppenheimer approximation applies, and the 'molecule' acts ...
- 143