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Chemistry Forums for Students => Undergraduate General Chemistry Forum => Topic started by: tashkent on November 21, 2004, 01:00:05 AM

Title: BaSO4 + HCl?
Post by: tashkent on November 21, 2004, 01:00:05 AM
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
Title: Re:BaSO4 + HCl?
Post by: ssssss on November 21, 2004, 02:00:35 AM
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.
Title: Re:BaSO4 + HCl?
Post by: Mitch on November 21, 2004, 02:11:50 AM
I don't know, but Hard acids and hard bases like H+ and  Cl- typically like to stay with each other.
Title: Re:BaSO4 + HCl?
Post by: budullewraagh on November 21, 2004, 11:21:14 AM
no reaction would occur.  the barium is way too cationically active and would rather stay with the much more negative sulfate
Title: Re:BaSO4 + HCl?
Post by: AWK on November 22, 2004, 01:54:58 AM
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.