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Author Topic: BaSO4 + HCl?  (Read 11089 times)

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tashkent

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BaSO4 + HCl?
« on: November 20, 2004, 07:00:05 PM »

Greetings everyone!

I have a question I would like to ask u guys.  I have encountered this in my GRE Chemistry exam recently.  It deals with the reaction of BaSO4 + HCl.  Shall it form BaCl2 + H2SO4?  My friend says that its impossible to form H2SO4 in the reaction.  I would like to know the mechanism of this reaction?  Any responses will be highly appreciated.

Thanks a lot,
Tashkent
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ssssss

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Re:BaSO4 + HCl?
« Reply #1 on: November 20, 2004, 08:00:35 PM »

Greetings everyone!

I have a question I would like to ask u guys.  I have encountered this in my GRE Chemistry exam recently.  It deals with the reaction of BaSO4 + HCl.  Shall it form BaCl2 + H2SO4?  My friend says that its impossible to form H2SO4 in the reaction.  I would like to know the mechanism of this reaction?  Any responses will be highly appreciated.

Thanks a lot,
Tashkent


No the reaction will not proceed and hence No H2SO4.
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Mitch

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Re:BaSO4 + HCl?
« Reply #2 on: November 20, 2004, 08:11:50 PM »

I don't know, but Hard acids and hard bases like H+ and  Cl- typically like to stay with each other.
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budullewraagh

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Re:BaSO4 + HCl?
« Reply #3 on: November 21, 2004, 05:21:14 AM »

no reaction would occur.  the barium is way too cationically active and would rather stay with the much more negative sulfate
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AWK

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Re:BaSO4 + HCl?
« Reply #4 on: November 21, 2004, 07:54:58 PM »

BaSO4 is slightly dissolved in concentrated HCl because an equlibrium reaction
SO4(2-) + H(+) = HSO4(-)
take place (K2 of H2SO4 equals to 1.2x10^-2) ),
but this reaction cannot any practical use.
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