All Questions
10
questions
0
votes
1
answer
307
views
What is ionic reaction equation for reaction between carbon dioxide and limewater?
Write the ionic reaction equation for the reaction
\[\ce{Ca(OH)2(aq) + CO2(g) <=> CaCO3(s) + H2O(l)}.\]
I first wrote the complete ionic equation as such:
\[\ce{Ca^2+ + 2 OH^- + CO2 <=> ...
- 133
0
votes
1
answer
217
views
Qualitative analysis of the anionic part of a salt using it's soda extract [closed]
While testing for anions using dilute $\ce{H2SO4}$, we prefer using the soda extract for tests rather than the actual salt. But we don’t use it for tests of carbonates, bicarbonates and sulphites. Why ...
- 445
0
votes
0
answers
65
views
Adding a base and a salt to a hydrated complex
The question goes like this:
$\ce{Fe(NO3)3}$ V= $\pu{1 liter}$ and $\ce{[Fe(NO3)3]} =\pu{0.1 moles/liter}$.
Calculate the $\mathrm{pH}$ of this solution using the values of $K$ given.
We add a solid ...
2
votes
3
answers
6k
views
How can magnesium hydroxide be a strong base and be sparingly soluble at the same time?
A strong base means it completely dissociates forming $\ce{OH^-}$ ions when added to aqueous solution.
Sparingly soluble means it dissolves very little when added to aqueous solution.
Yet magnesium ...
- 253
0
votes
1
answer
4k
views
Why does barium sulphate not dissolve in HCl while barium sulphite does?
Intuition tells me that the ionic bond in the sulphate must be stronger than that in the sulphite.
Is this true?
If it is then why? The charge on the barium ion is 2+ in both cases and the charge on ...
- 709
8
votes
2
answers
2k
views
How does ammonium chloride increase the solubility of magnesium hydroxide in water?
In my textbook it is written that $\ce{Mg(OH)2}$ is slightly soluble in water, and it forms a milky solution which is called "milk of magnesia".
Its solubility can be increased by the addition of $\...
- 91
-1
votes
1
answer
91
views
Using a weak acid to prevent the precipitation of Mg(OH)2
I have this exercise in my chemistry book, and I have been staring at it for so long but unfortunately I have no single idea what to do and where to start. I will be so thankful for any help.
$0.05$ ...
- 187
1
vote
0
answers
59
views
How do I go about either finding or calculating Aluminum-Oxalate salt solubility values in aqueous medium?
Water would contain other salts which may complicate things a bit. But finding out the Aluminum-Oxalate salts solubility values in pure water would be a good indicator already. It's for temperatures ...
- 451
5
votes
0
answers
793
views
Solubility of PbSO4
The solubility of $\ce{PbSO4(s)}$ increase with the addition of $\ce{H2SO4}.$ Why?
I don't quite understand this. When dissolving $\ce{PbSO4(s)}$ we get the equilibrium equation:
$$\ce{PbSO4(s) <=...
- 79
2
votes
1
answer
660
views
Predicting Ka/Kb values using values for solubility in water
Given that $K_\mathrm{a}$ values are determined by the position of equilibrium for a species such as $\ce{HCl}$ where $K_\mathrm{a} = \ce{\frac{{[H^{+}]}{[Cl^{-}]}}{[HCl]}}$, I was wondering whether ...
- 79