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Why is sulfur trioxide not added directly to water to form sulphuric acid?
Wiki User
∙ 11y ago
In the manufacture of H2SO4, the reaction:
H2O + SO3 → H2SO4 is not used because it is highly exothermic.
Instead, the SO3 is dissolved in conc H2SO4 to form a substance called oleum, H2S2O7. This is then dissolved in water to produce H2SO4
H2S2O7 + H2O → 2H2SO4 This is a much more controllable reaction
Wiki User
∙ 13y ago
Wiki User
∙ 11y agoThe reaction would be:
SO3 (g) + H2O (l) → H2SO4 (l)
This reaction is highly exothermic. Enough heat is generated to vaporize the aqueous solution of Sulfuric acid that would be formed. In order to control this on an industrial scale, a great amount of energy would be need to remove this generated heat. This would be costly, driving up the final price of the H2SO4 produced.
In addition, the vaporized H2SO4 is very difficult to deal with. This is super acid rain and even if contained is highly corrosive.
By dissolving the Sulphur trioxide in Sulphuric acid, oleum is formed:
SO3 (g) + H2SO4 (l) → H2S2O7 (l)
This reaction does generate as much heat, an in a plant which is making H2SO4, the cost of the acid is negligible.
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Why does Sulfur dioxide form an acidic solution?
Sulphur dioxide is a non- metallic oxide and hence it is an acidic oxide. Since it is acidic in nature, when added to water it forms sulphuric acid which is an acid.
What happens if sulfur powder is added to tap water?
Sulfur powder will float on the surface of the water.
What is the chemical formula for Tri sulfur Pent oxide?
SO3 Tetra means four, genius. SO3 is Sulphur Trioxide. Sulphur Tetroxide exists as an anion [SO4]2- More commonly referred to as a sulphate. Sulphur Tetroxide is not sulphate, sulphate is an ion while Sulphur Tetroxide is not just like sulphur trioxide (SO3) is a neutral molecule whereas sulphite (SO3)2- is an ion...... so yes, sulfur tetraoxide is SO4, nothing more nothing less
What are the effects of sulfur and phosphorus in steel?
Sulfur decreases ductility and notch impact toughness especially in the transverse direction. Weldability decreases with increasing sulfur content. Sulfur is found primarily in the form of sulfide inclusions. Sulfur levels are normally controlled to low levels. The only exception is free-machining steels, where sulfur is added to improve machinability.
What happens when you mix hydrogen peroxide with ammonia?
The asker added, "I am looking to destroy SO2 accumulation in a gas system". In my opinion, you'd be likely to get a reaction between the ammonia (NH3) and the peroxide (H2O2). I'm not sure whether the sulfur dioxide (SO2) would be preferentially affected by the peroxide, but if it were, you'd likely get sulfur trioxide (SO3), which dissolves in H2O to produce H2SO4 -- sulfuric acid. As for a reaction between the peroxide and the ammonia -- based on limited experience, I believe there are several possibilities, and that the products you got would be dependent upon temperatures.
Magnesium oxide reacts with sulfur trioxide?
Magnesium Oxide Reacts With Sulfur Trioxide added: Magnesium sulfate is formed: MgO + SO3 --> MgSO4
How is oleum made?
Oleum is typically produced by dissolving sulfur trioxide (SO3) in concentrated sulfuric acid (H2SO4).
Is so3 a formula unit or molecule?
SO3 is the chemical formula for the compound sulfur trioxide. Sulfur trioxide gas is a major pollutant and a big contributor to acid rain. But SO3 may, with a 2- added to it as a superscript, represent the sulfite ion with a charge of -2.
What is formed by chemical reactions between sulfur and oxygen?
The main product is sulfur dioxide, which smells like rotten eggs and when added to water forms sulfurous acid. In the presence of a catalyst sulfur trioxide forms, which when added to water makes sulfuric acid.
When dilute sulphuric acid is added to zinc granules the gas produced is?
When sulphuric acid is added to zinc granules , the gas produced is hydrogen gas. Zinc displaces hydrogen from sulphuric acid.
Why does Sulfur dioxide form an acidic solution?
Sulphur dioxide is a non- metallic oxide and hence it is an acidic oxide. Since it is acidic in nature, when added to water it forms sulphuric acid which is an acid.
What effect does oxygen and sulphur have on the Ph of the sea?
Oxygen has a negligible effect on pH, likewise pure sulfur. However ... Sulfa oxides added to water form sulphuric acid, a major contributor to acidic oceans.
Does limestone fizz when sulphuric acid is added?
Yes
What acid is formed when SO3 is added to water?
sulphuric acid
What chemical should be added to copper carbonate to make copper sulphate?
Sulphuric acid, because "sulphuric" is what gives copper sulphate it's name
Why do they put sulfur in explosives?
Sulfur is added to gun powder as a fuel; also adding sulfur the rate of ignition of the explosive is greater.
Should sulfur be added to peoples drinking water?
Since sulfur is in food it can be in water also.
