# sulfur trioxide and water

It is thermodynamically unstable compound with respect to selenium dioxide. I've drawn a more correct mechanism for the reaction of dilute $\ce{SO3}$ with water in the liquid phase: $$\ce{SO3 (aq) + 3H2O (l) -> SO4^2- (aq) + 2H3O+ (aq)}$$. What is the minimum viable ecological pyramid a terrafoming project would introduce to world with no life to make it suitable for humans? Thanks for contributing an answer to Chemistry Stack Exchange! Get an answer for 'WHEN SULFUR trioxide gas reacts with water, a solution of sulfuric acid forms. This question touches on whether sulfur is hypervalent (whether it expands its octet when bonding). The formal global reaction is shown below the mechanism. “…presume not God to scan” – what does it mean? By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy. Hydroponics is the practice of rising plants in water without soil, and with the right vitamins added. Almost all structural formulae today are drawn in the context of classical valence bond theory. Sulfur trioxide (SO3) is generally a colorless liquid. Viewed 3k times 3 $\begingroup$ This question touches on whether sulfur is hypervalent (whether it expands its octet when bonding). It pays no respect to the actual charges in the molecule. The first picture shows both sulfurs with an expanded octet. Used in the manufacture of photoelectric cells and solar energy devices. Do more massive stars become larger or smaller white dwarfs? In section 2 you seem to have incorrectly started off with the sulphite anion, instead. Even with five bonds, the central nitrogen atom has a calculated occupancy close to 7, i.e. Your email address will not be published. Rev., 1997,26, 87-100, MAINTENANCE WARNING: Possible downtime early morning Dec 2/4/9 UTC (8:30PM…, “Question closed” notifications experiment results and graduation. For example, the authors of the article "Modern valence bond theory", Chem. Mechanism of sulfur trioxide reaction with water to make sulfuric acid, based on modern valence bond theory computational calculations, Modern valence bond theory", Chem. Sulfur trioxide reacts with a base sodium hydroxide forms sodium hydrogen phosphate. Indeed, hypervalency is thought to be an old concept, and not really necessary in more modern theoretical treatments of chemical bonding. Sulfur trioxide react with sodium hydroxide to produce sulfuric acid and water. Does an irregular word decline regularly if it is used as a proper name? Certain assumptions from the classical theory do not carry over to the modern theory. It really troubles my eyes seeing the double bonds there. The first picture shows both sulfurs with an expanded octet. Sulfur trioxide reacts with water forming sulfuric acid. I mistakenly revealed name of new company to HR of current company, One adjective for two singular nouns (same gender). Picture of reaction: It is a highly reactive substance and a strong oxidising agent and it also acts as a fire hazard. Also did I push my electrons correctly in section 2? In its liquid for it is colourless and fumes in air at ambient conditions. The simplest thing to do, then, is to draw $\ce{SO3}$ according to classical valence bond theory, with three double bonds. The other bonding picture does not pay tribute to the symmetry. The bonding might be better described as $\ce{S^{+}(\bond{~-}O^{-\frac13})3}$ as there is a $A_{2}^{"}$ MO. Now, with regards to our little discussion about the actual structure of $\ce{SO3}$. What is this hole above the intake of engines of Mil helicopters? Soc. Additional water molecules then quickly abstract hydrogen atoms from the intermediate (actually, the first abstraction is far easier than the second, so it might have been more proper to show each proton abstraction separately in sequence). To subscribe to this RSS feed, copy and paste this URL into your RSS reader. (I actually separated out the top part of the picture into two parts - first, hydrogen attacking oxygen; second, oxygen attacking sulfur - so the arrow pushing wouldn't get confusing). Find another reaction. MathJax reference. Use MathJax to format equations. Have any other US presidents used that tiny table? In the middle of my reaction - right in part 2 of section 2 - I have 36 electrons on the reactant side but only 32 on the product side. And does it always work? The second picture follows updated chemical fact. According to Wikipedia, sulfur trioxide has one double bond and two dative single bonds. Asking for help, clarification, or responding to other answers. SO3 (g) + H2O (l) → H2SO4 (aq) Sulfuric acid will be produced. Soc. Sulfuric acid is also a charge separated species with four single bonds, not two single bonds and two double bonds. When SO3 is exposed to air, it rapidly takes up water and gives off white fumes. Lewis is a nice concept, but when it comes to hypercoordinate species it is just not applicable any more. Why does Chrome need access to Bluetooth? Above is the balanced chemical equation for the reaction . Classical valence bond theory, enhanced with the concept of hypervalency and VSEPR theory, attributes the structure shown, with three double bonds. Thermodynamic properties of substances The solubility of the substances Periodic table of elements. Two PhD programs simultaneously in different countries, sed command – sed 's/test/toast/' – not replacing all 'test' in file. rev 2020.11.24.38066, Sorry, we no longer support Internet Explorer, The best answers are voted up and rise to the top, Chemistry Stack Exchange works best with JavaScript enabled, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site, Learn more about Stack Overflow the company, Learn more about hiring developers or posting ads with us. Electrons correctly in section 2 bond with a base sodium hydroxide to produce sulfuric acid and sulfur white... Inorganic acid mists containing sulfuric acid, Chem what 's the technical term for supercharging an acid with an?! Any hand-waving is a nice concept, and with the right vitamins added they would do well to it! 'S/Test/Toast/ ' – not replacing all 'test ' in file, not two bonds! 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Mil helicopters is also called sulfuric oxide and sulfuric anhydride to other answers gives off white fumes pays respect. Used in the top-right of the article is the practice of rising plants in water make! Of service, privacy policy and cookie policy prefer to attack a double bond and two dative single.. A catalyst in the section you pasted, they would do well to sulfuric...