Oxygen reaction with sulfur dioxide

The sulfur dioxide in Venus atmosphere is turned into sulfuric acid by two different chemical reactions. In the first reaction, the sulfur dioxide reacts with oxygen to form sulfur trioxide ... 

Sulfur dioxide combines with oxygen on heating and in the presence of a catalyst. This reaction proceeds at temperatures between 400 to 700°C with vanadium pentoxide catalyst to make sulfuric acid ... 

Sulfur dioxide reacts with oxygen in air to produce sulfur trioxide. The sulfur trioxide then reacts with water to produce sulfuric acid. Write balanced chemical equations for these reactions. 

Sulfuric acid is formed when sulfur dioxide reacts with oxygen and water. Write the balanced chemical equation for the reaction. If 12.5 mol SO2 reacts, how many mol H2SO4 can be produced How many mol O2 is needed ... 

Sulfur dioxide reacts with oxygen in a reversible reaction to form sulfur trioxide as shown. 

I LEARNING CHECK 5.2 Write and balance an equation that represents the reaction of sulfur dioxide (SO2) with oxygen gas (O2) to give sulfur trioxide (SO3). 

During the commercial preparation of sulfuric acid, sulfur dioxide reacts with oxygen in an exothermic reaction to produce sulfur trioxide. In this step, sulfur dioxide mixed with oxygen-enriched air passes into a reaction tower at about 420°C, where reaction occurs on a vanadium(V) oxide catalyst. Discuss the conditions used in this reaction in terms of its effect on the yield of sulfur trioxide. Are there any other conditions that you might explore in order to increase the yield of sulfur trioxide ... 

Acid rain is rainfall that contains sulfuric acid originating from organic fuels that contain sulfur. The process occurs in three major steps. The sulfur first burns, forming sulfur dioxide. In sunlight, the sulfur dioxide reacts with oxygen in the air to produce sulfur trioxide. When rainwater falls through the sulfur trioxide, the reaction produces sulfuric acid. Write the equation for each step in the process and tell what kind of reaction it is. 

When sulfur dioxide reacts with oxygen, sulfur trioxide forms. How many moles of sulfur dioxide are needed to produce 3.99 moles of sulfur trioxide if the reaction is carried out in excess oxygen ... 

Unlike boron fluoride, titanium tetrachloride does not catalyze the liquid phase polymerization of isobutylene under anhydrous conditions (Plesch et al., 83). The addition of titanium tetrachloride to a solution of the olefin in hexane at —80° failed to cause any reaction. Instantaneous polymerization occurred when moist air was added. Oxygen, nitrogen, carbon dioxide, and hydrogen chloride had no promoting effect. Ammonia and sulfur dioxide combined with the catalyst if these were added in small quantity only, subsequent addition of moist air permitted the polymerization to occur. Ethyl alcohol and ethyl ether, on the other hand, prevented the polymerization even on subsequent addition of moist air. They may be regarded as true poisons. 

A number of suboxides of sulfur have been reported, but in general their composition has not been clearly established. Polysulfur oxides of formula Ss- 10O2 are formed by reaction of hydrogen sulfide and sulfur dioxide. Also, when sulfur is burned with oxygen in very limited supply disulfur monoxide, S20 is formed. This has the structnie... 

Acid Rain Acid rain, a second major environmental problem, results primarily from the production of sulfur dioxide, SC 2, that accompanies the burning of sulfur-containing coal in power-generating plants. Sulfur dioxide is slowly converted to SO3 by reaction with oxygen in air, and SO3 dissolves in rainwater to yield dilute sulfuric acid, H2SO4. 

Berthelot45-65 burned rhombic sulfur in oxygen in a bomb at constant volume. The amounts of sulfur dioxide along with the lesser amounts of sulfur trioxide were absorbed and determined by titration with iodine exactly equivalent to the amount of sulfur burned. In another series, Berthelot used aqueous potassium hydroxide to absorb the products of combustion, titrating afterwards with iodine. His data from the two series of experiments yield, respectively, <2=69.4 and 69.1, for the reaction, S (c, rhombic) +02 (g) =S02 (g). Ferguson1 reviewed Berthelot s data and discarded the results of his second series on the grounds of unreliability of the analytical method. 

The reaction of gaseous SO2 with molecular oxygen in the contact process seems to proceed over two independent mechanisms [13] one of which is the direct oxidation of a vanadium pentoxide-sulfur dioxide adduct by oxygen and the other proceedings via a redox cycle involving V4+ and V3+ intermediate species [13-15]. 

The first of the previous reactions is responsible for a good portion of the acid rain problem troubling the industrialized world. Sulfur, present in small quantities as an impurity in coal and oil, is converted to sulfur dioxide when the coal or oil is burned then the sulfur dioxide reacts with the moisture in the air to produce sulfurous acid. Sulfurous acid can react with the oxygen in air to produce sulfuric acid. These acids are washed from the air by rain (or snow), and the solution can cause some corrosion of concrete and metal in buildings. Acids in the air and in the rain or snow also injure trees and other plants, as well as animals, including humans. In high concentrations, acids and acid anhydrides in the air can make breathing difficult, especially for people who are already in poor health. 

Due to its versatility, sulfur dioxide is also a widely used food additive. It controls microbial decay and prevents reaction with oxygen, thus reducing the risk of browning. Sulfur dioxide also preserves the vitamin C content of food. So, plenty of scientists are interested in sulfur dioxide for plenty of reasons. 

The soils on Mt. Erebus were first described by Ugolini (1967). The rocks around the Main Crater of Mt. Erebus are coated with salts which also occur locally within the regolith. Keys (1980) and Keys and Williams (1981) identified the compounds listed in Table 16.3 which contain not only chlorine and fluorine, but also sulfate that forms by a reaction of sulfur dioxide gas with water vapor and oxygen of the atmosphere. In addition, the salts on the summit of Mt. Erebus contain aluminum, silicon, and iron (Keys and Williams 1981). Although some of the salt deposits in Eig. 16.22a and b are distinctly yellow, native sulfur is not present. Instead, the yellow deposits are probably composed of jarosite[(K,Na)(Ee,Al)(SO,),(OH)g]. 

Ensuing regeneration of the sorbent is accomplished by high-temperatnre reaction with oxygen to yield a concentrated stream of sulfur dioxide and regenerated iron oxide. 

Nonmetals also undergo synthesis reactions with oxygen to form oxides. Sulfur, for example, reacts with oxygen to form sulfur dioxide. And when carbon is burned in air, carbon dioxide is produced. 

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