What Is the Strongest Acid?

Answer 1

As far as i know Fluoroantimonic acid (HSbF6) is the strongest acid.
Which is a kind of super acids.

Answer 2

A strong acid is an acid that dissociates completely in an aqueous solution, or in other terms, with a pKa < −1.74. This generally means that in aqueous solution at standard temperature and pressure, the concentration of hydronium ions is equal to the concentration of strong acid introduced to the solution. While strong acids are generally assumed to be the most corrosive, this is not always true. The carborane superacid (H(CHB11Cl11), which is one million times stronger than sulfuric acid, is entirely non-corrosive, whereas the weak acid hydrofluoric acid (HF) is extremely corrosive and can dissolve, among other things, glass and all metals except iridium. The equation for complete dissociation of an acid in aqueous solution is as follows:

HA(aq) → H+(aq) + A−(aq)

In any other acid-water reaction, dissociation is not complete, so will be represented as an equilibrium, not a completed reaction. The typical definition of a weak acid is any acid that does not dissociate completely. The difference separating the acid dissociation constants of strong acids from all other acids is so great that this is a reasonable demarcation.

Due to the complete dissociation of strong acids in aqueous solution, the concentration of hydronium ions in the water is equal to the concentration of the acid introduced to solution: [HA] = [H+] = [A−]; pH = −log[H+].

Answer 3

None of the strong acids traditionally listed in a chemistry text holds the title of World's Strongest Acid. The record-holder used to be fluorosulfuric acid (HFSO3), but the carborane superacids are hundreds of times stronger than fluorosulfuric acid and over a million times stronger than concentrated sulfuric acid. The superacids readily release protons, which is a slightly different criterion for acid strength than the ability to dissociate to release a H+ ion (a proton).

Strong Is Different from Corrosive-

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Corrosiveness is related to the negatively-charged part of the acid. Hydrofluoric acid (HF), for example, is so corrosve it dissolves glass. The fluoride ion attacks the silicon atom in silica glass while the proton is interacting with oxygen. Even though it is highly corrosive, hydrofluoric acid is not considered to be a strong acid because it does not completely dissociate in water..

Answer 4

It actually depends on which acids you comparing. No acid holds the title of being the world's strongest acid. Superacids are very strong.

Answer 5

Fluoroantimonic acid

Answer 6

Hydrofluoric acid (in terms of corrosiveness), although it is classed as a weak acid.

It terms of strength is Fluoroantimonic acid HSbF6.

While strong acids are generally assumed to be the most corrosive, this is not always true. The carborane superacid (H(CHB11Cl11), which is one million times stronger than sulfuric acid, is entirely non-corrosive, whereas the weak acid hydrofluoric acid (HF) is extremely corrosive and can dissolve, among other things, glass and all metals except iridium

Answer 7

It is the fluorosulfuric acid (HFSO3), but the carborane super acids are hundreds of times stronger than fluorosulfuric acid and over a million times stronger than concentrated sulfuric acid.

Answer 8

As others have said, it is now the carborane acids. You can read the press release and also look up the research of Chris Reed at UC Riverside.

Answer 9

It is one of the superacids.

http://en.wikipedia.org/wiki/Superacid

It is called Fluoroantimonic acid and is about 2 x 10^19 times stronger than Sulphuric acid (which incidently is stronger than Hydrochloric)

http://en.wikipedia.org/wiki/Fluoroantimonic_acid

Answer 10

The Strongest acid is Hydrochloric acid (HCl)