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sulphur dioxide

so2 _ h2o = h2so4

2007-01-15 06:19:15 · answer #1 · answered by OhSimonsBinDrinkin 4 · 0 0

Sulphur Dioxide

2007-01-19 00:01:53 · answer #2 · answered by Anonymous · 0 0

Sulphur Dioxide

2007-01-15 06:32:34 · answer #3 · answered by tmuk55 3 · 0 0

That is Sulphur trioxide. Sulphur dioxide yields Sulphurous acid.

2007-01-15 06:21:38 · answer #4 · answered by John C 2 · 0 0

logically it would be sulphur trioxide, but the enegry required for this process is huge. Sulphuric acid is formed through the Contact process.

The Contact Process is a process involving the catalytic oxidation of sulfur dioxide, SO2, to sulfur trioxide, SO3.
Solid sulfur, S(s), is burned in air to form sulfur dioxide gas, SO2
S(s) + O2(g) -----> SO2(g)
The gases are mixed with more air then cleaned by electrostatic precipitation to remove any particulate matter
The mixture of sulfur dioxide and air is heated to 450oC and subjected to a pressure of 101.3 - 202.6 kPa (1 -2 atmospheres) in the presence of a vanadium catalyst (vanadium (V) oxide) to produce sulfur trioxide, SO3(g), with a yield of 98%.
2SO2(g) + O2(g) -----> 2SO3(g)
Any unreacted gases from the above reaction are recylced back into the above reaction
Sulfur trioxide, SO3(g) is dissolved in 98% (18M) sulfuric acid, H2SO4, to produce disulfuric acid or pyrosulfuric acid, also known as fuming sulfuric acid or oleum, H2S2O7.
SO3(g) + H2SO4 ------> H2S2O7
This is done because when water is added directly to sulfur trioxide to produce sulfuric acid
SO3(g) + H2O(l) -----> H2SO4(l)
the reaction is slow and tends to form a mist in which the particles refuse to coalesce.
Water is added to the disulfuric acid, H2S2O7, to produce sulfuric acid, H2SO4
H2S2O7(l) + H2O(l) -----> 2H2SO4(l)

2007-01-19 05:26:27 · answer #5 · answered by Sue M 1 · 0 0

Sulphur tri oxide

2007-01-15 06:25:01 · answer #6 · answered by Daya K 1 · 0 0

Hydrogen Sulphide would dissolve to give Sulphuric Acid.

2HSO3 + 2H2O -> 2H2SO4 + O2

2007-01-15 06:21:38 · answer #7 · answered by boobboo77 2 · 0 0

sulphur dioxide

2007-01-16 07:32:53 · answer #8 · answered by wally 3 · 0 0

sulphur dioxide

2007-01-15 06:23:54 · answer #9 · answered by k?? 2 · 0 0

Sulphur trioxide, SO3.

SO3 + H2O ---> H2SO4

2007-01-15 15:56:18 · answer #10 · answered by Kemmy 6 · 0 0

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