All Questions
Tagged with equilibrium aqueous-solution
128
questions
-2
votes
2
answers
6k
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How to tell the pH of HC2H3O2?
Find the $\mathrm{pH}$ of a $\pu{0.500 M}$ solution of $\ce{KC2H3O2}$.
I am preparing for an exam on equilibrium and I have two questions:
How would I go about calculating this?
Is the $\ce{H3O}$ in ...
- 119
1
vote
1
answer
2k
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How does carbonic acid cause acid rain when Kb of bicarbonate is greater than Ka?
How does carbonic acid cause acid rain when $K_b$ of bicarbonate is greater than $K_a$? Should it not create an alkaline solution?
$K_a = 4.8 \times 10^{-11}\ (mol/L)$. $K_b = 2.3 \times 10^{-8}\ (...
- 399
5
votes
2
answers
3k
views
Calculating approximate pH of polyprotic acids
When I took up ionic equilibria and titrations after a long break, I found it hard to solve the questions regarding pH calculations of polyprotic acds. Consider these two questions as examples:-
...
- 6,795
3
votes
1
answer
166
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Isoelectric pH of colloids?
How did we derive the relation between the isoelectric pH and the dissociation constants for the amino and carboxyl groups on zwitterionic amino acids.
$$pI=\frac {pK_{a1}+pK_{a2}}{2}$$
where $$\ce{...
- 6,795
-1
votes
3
answers
11k
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Which one is nitric Acid, HNO3 by itself, or when it is included in H2O?
This is a quote from my Chemistry textbook:
Nitric acid ionises according to the following equation:
$$\ce{HNO3(l) + H2O(l) -> H3O+(aq) + NO3- (aq)}$$
I know that the formula for nitric acid ...
- 289
8
votes
1
answer
2k
views
How to calculate the equilibration time of two connected chambers of salt solution, initially at different concentrations?
I am trying to build a system of two connected chambers, one of which is also connected to a cuvette, so I can perform a spectrometry experiment with different concentrations of $\ce{KNO3}$ solution. ...
- 181
4
votes
2
answers
3k
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Why is water ignored in the ionic equilibrium of HF?
While trying to understand the solution of a problem given in my textbook, I realized I'm having some difficulty with the solution. The problem is as follows:
The ionization constant of $\ce{HF}$ ...
- 261
26
votes
4
answers
3k
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What software can calculate aqueous solution equilibria?
What software is available out there to calculate the equilibrium in a set of reactions in aqueous solution? In particular, I'm interested in software general enough to simulate things like titration ...
- 23.8k