All Questions
5
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Why is the ionic product of water also the equilibrium constant of dissociation of water?
This answer presents a derivation of the value of ionic product of water at $25^{\circ}\text{C}$.
The relation $K_\text{eq} = \operatorname{e}^{-\frac{\Delta_\text{r}G^{\circ}}{RT}}$ is used for the ...
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-1
votes
1
answer
374
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Why do we take active mass of water 1 but while calculating pKa of water as 55.345? [duplicate]
First, I should mention that the question was already asked here:Why is active mass of a pure solid or liquid always taken as unity?
But while calculating $\mathrm{p}K_\mathrm{a}$ of pure water we ...
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8
votes
2
answers
2k
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Why does increasing the pressure cause ice to melt more?
This question was given under chemical equilibrium.
Why does increasing the pressure on this system cause ice to melt more?
$$\ce{H2O(s) <=> H2O(l)}$$
I'm pretty sure this has to be ...
- 5,532
4
votes
1
answer
31k
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Determining standard Gibbs free energy for water?
I am dealing with the dissociation of water into its components hydrogen and oxygen and I am trying to determine the standard Gibbs free energies of each component. My professor said if the substance ...
- 219
25
votes
2
answers
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Why does water dissociate to H3O+ and OH- rather than H+ and OH-?
Why does water dissociate to
$\ce{H3O+ + OH-}$
instead of $\ce{H+ + OH-}$?
This question came to surface when I was learning about acids and bases, and learned this definition:
$\mathrm{pH=}-\log_{10}[...
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