An acid disassociate in water because

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Discussion Overview

The discussion revolves around the dissociation of acids in water, exploring the reasons behind this process, the nature of strong and weak acids, and the formation of hydronium ions. It touches on theoretical aspects of acid behavior in aqueous solutions.

Discussion Character

  • Technical explanation
  • Conceptual clarification
  • Debate/contested

Main Points Raised

  • Some participants propose that stronger acids dissociate more completely in water, suggesting a relationship between acid strength and dissociation.
  • One participant asserts that the presence of hydrogen in an acid contributes to its dissociation, but acknowledges this is only part of the explanation.
  • Another participant clarifies that the hydrogen cation (proton) from acid dissociation reacts with water to form hydronium ions (H3O+), emphasizing that this process does not involve binding to hydrogen in water but rather to oxygen.
  • There is a correction regarding the nature of hydronium ions, indicating that H2O is transformed into a different species rather than simply acquiring a positive charge.

Areas of Agreement / Disagreement

Participants express differing views on the reasons for acid dissociation and the nature of the resulting ions. The discussion remains unresolved regarding the underlying mechanisms and definitions involved.

Contextual Notes

Participants note that the reasons for acid dissociation are complex and involve multiple factors, which remain unspecified. There is also an acknowledgment that not all substances containing hydrogen are acidic, indicating a need for careful definition.

LogicalAcid
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For example, the stronger an acid the more the Ions disassociate in an aqueous solution, right?
If I have the idea right, an acid disassociates in water B/C of the reason it has Hydrogen in it (this is part of the reason) the Hyrdrogen atom in the acid separates from the other atom(s) it was attached to and binds with the H atom in the aqueous solution?

This is so hard...
 
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It is not hard, you are just trying to run before you know how to crawl.

As a first approximation, there are strong acids - 100% dissociated in water - and weak acid, dissociated only partially. Let's not try to discuss why's for now, as they are combination of many factors.

If anything, hydrogen (more precisely - hydrogen cation, or just a proton) from acid dissociation reacts with water molecule, creating hydronium ion (cation) H3O+. It doesn't bind to hydrogen in water molecule, more like oxygen. And acids don't dissociate just because they have hydrogen in molecule - there is plenty of substances that have hydrogen in molecules and they are not acidic.
 
Borek said:
It is not hard, you are just trying to run before you know how to crawl.

As a first approximation, there are strong acids - 100% dissociated in water - and weak acid, dissociated only partially. Let's not try to discuss why's for now, as they are combination of many factors.

If anything, hydrogen (more precisely - hydrogen cation, or just a proton) from acid dissociation reacts with water molecule, creating hydronium ion (cation) H3O+. It doesn't bind to hydrogen in water molecule, more like oxygen. And acids don't dissociate just because they have hydrogen in molecule - there is plenty of substances that have hydrogen in molecules and they are not acidic.

So the cation is attracted to the H20 atom, so now that H20 has a +1 charge it is known as Hydronium (H30+)?
 
Yes. Just note you can't say

LogicalAcid said:
so now that H20 has a +1 charge it is known as Hydronium (H30+)?

It is no longer H2O that has a +1 charge, it was converted to something completely different.
 

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