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![[Post New]](/templates/default/images/icon_minipost_new.gif) 25 Jul 2008 18:09:51 IST
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Which is the strongest acid ?
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25 Jul 2008 18:45:10 IST
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The Strongest Acid is: H2SO4 ( Slphuric Acid )...
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NO.
HI is way stronger than H2SO4.
Pka of H2SO4 = -5
PKa of HI = -10
PKa of CH3C(triplebond)NH+ = -10.1
Hence, the last acid is the strongest.
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25 Jul 2008 19:04:20 IST
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Fluoroantimonic acid (HSbF6)
mixture of hydrogen fluoride and antimony pentafluoride in the 1:1 combination affords the strongest known acid.
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25 Jul 2008 20:19:29 IST
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HI will b most acidic !!!!!
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25 Jul 2008 20:24:59 IST
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the strongest acids are carborane acids..
http://www.primidi.com/2004/11/17.html
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25 Jul 2008 20:27:03 IST
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STRONGEST ACID-------the strongest acids are sometimes
referred to as "superacids." These have an extremely large
proton-donating ability. Usually an acid is considered to
be a superacid if it has a proton-donating ability greater
than / equal to that of 1nhydrous (100%) sulfuric acid.
Apparently the strongest acid is hydrogen flouride (HF).
Upon reading, it seems that it is actually tough to distinguish
between the superacids on the basis of their pH alone. All strong
acids are fully ionized in dilute solution, and therefore they
all appear to have the same strength, equal to that of the
hydronium ion (h3O+), which is the most highly acidic species
that can exist in water. So all of these have the same pH on a
per-proton basis.
So, to rank superacids, chemists measure how strongly they tend to
react with a given base, B;
HA + B --> BH+ + A
This way, even superacids can be ranked relative to one another
in terms of their "strength." HF is the strongest in the table I
am looking at, followed by HSO3F, H2S2O7, HSO3CF3, HSO3Cl,
and H2SO4 (sulfuric acid).THIS IS MY FINAL ANSWER RATE ME IF U R SATISFIED!!!!!
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25 Jul 2008 20:28:51 IST
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KCN
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2 Aug 2008 02:55:51 IST
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well is int it HClO4
if not then the Ans shld be H2 SO4 bcoz it is also called king of acids
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2 Aug 2008 07:52:54 IST
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Well, superacids known as carborane ( CHB11R5X6 , X= halogen, R = alkly goup ) acids are known to be strongest acid, but they are non corrosive in nature.
2nd comes HSbF6 (Flouroantimonic acid ).
Note that acid strength is not measured by corrosiveness, but ease with which they split in H2O, which is measured by acidity constant.
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2 Aug 2008 08:19:59 IST
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answer is HClO4,ebbing's physical chemistry has given perfect explanation for this one
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2 Aug 2008 13:13:03 IST
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the last acid will be the strongest.
if correct please vote.
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2 Aug 2008 22:51:05 IST
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magic acid is a combination of fluorosuphonic acid and antimonipentaflouoride. this acid cn easily dissolve wax which cant be done by any other acids.But it is interesting to know that magic acid is not strongest acid. The strongest super acid is the mixture of hydrofluoric acid n antimoni pentafluoride.
it should be correct!!!!!!!
rate if useful............
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6 Aug 2008 22:52:30 IST
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ans is jus HClO4
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6 Aug 2008 22:56:49 IST
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