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1) Where do the 2 hydrogens bond to the sulfate ion? I know that sulfate has a tetrahedral geometry - 4 oxygens surrounding a central sulfur - so I'm assuming the hydrogens bond to two of the Os. But if so, which 2 do they pick? Adjacent ones or opposite ones? And maybe the Hs bond to just one of the Os! I really have no idea.

2) It *is* true that what is generally considered to be "sulfuric acid" is actually "H2SO4 gas dissolved in water," correct? If so, what's the name for H2SO4(g)? Just hydrogen sulfate?

2007-12-09 09:51:38 · 2 answers · asked by AxiomOfChoice 2 in Science & Mathematics Chemistry

2 answers

1) The 2 H's bond to two O's of SO4=. The H's of H2SO4 are labile, which means that they constantly leave and return. While one or both H's are gone as H+, The SO4= ion becomes what is called a resonance structure in which all four O's are equivalent. When the H+'s return, they bond randomly, each to one of the O's.

2) Sulfuric acid, H2SO4 is a unique compound. There is no H2SO4 acid gas. There is SO3, a solid compound, which reacts with water to form the covalently (mostly) bonded compound H2SO4.

There are questions about solutions of SO2 and CO2 in water. Are they sulfurous acid (H2SO3) and carbonic acid (H2CO3)? Or are they hydrates of the gases in water, SO2*H2O, CO2*H2O?

2007-12-09 10:08:14 · answer #1 · answered by steve_geo1 7 · 0 0

Do you mean concentrated "water free" sulphuric acid or sulphuric acid solution..... there is a big difference

2016-05-22 09:05:35 · answer #2 · answered by ? 3 · 0 0

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