Arcylonitrile‚ C3H3N‚ is the starting material for the production of a kind of synthetic fiber acrylics) and can be made from propylene‚ C3H6‚ by reaction with nitric oxide‚ NO‚ as follows: 4 C3H6 (g) + 6 NO (g) → 4 C3H3N (s) + 6 H2O (l) + N2 (g) What mass of C3H3N can be made when 21.6 g of C3H6 react with 21.6 g of nitric oxide? 3. Calculate the percent yield for the reaction: P4 (s) + 6 Cl2
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on the environment that government agencies have attempted to make efforts to reduce the amount of pollutants that are released into the atmosphere. Acid rain‚ or acid precipitate‚ is any form of precipitation that has high levels of sulfuric and nitric acids (Briney). Acid precipitate does not always have to be rain‚ it can be in the form of snow‚ fog‚ and small particles of dry material that settle to earth. Rotting vegetation‚ and erupting volcanoes release some chemicals that can naturally cause
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ion. Bases have the same definition‚ although the difference is that it firm hydroxide ions instead of hydrogen ions. We can write OH- instead of hydroxide ion. All alkali is bases but not all bases are alkali. However a base is normally a metal oxide or hydroxide. If the base is soluble in water‚ it is given a special name alkali If people know the properties of acids and bases‚ they could make it in a better possible way. Properties of Acid and Bases Acid | Base | Acids release a hydrogen
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Acid rain is caused by the burning of fossil fuels. Burning oil‚ gas and coal in power statons releases Sulphur Dioxide into the atmosphere. Burning oil and petrol in motor vehicles puts nitrogen oxides into the atmosphere. These gases mix with water droplets in the atmosphere creatng weak solutons of nitric and sulphuric acids. When precipitaton occurs these solutons fall as acid rain. History of acid rain Though acidic rain was discovered in 1852‚ it was not untl the late 1960s that scientsts began
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is diabetes. People with both type 1 and type 2 diabetes mellitus have high levels of triglycerides and LDL; they also have decreased levels of HDL. Since diabetics have higher blood glucose levels‚ the endothelial cells diminish the creation of nitric oxide‚ a vasodilator. The endothelium also secretes thromboxane A2‚ a coagulation enhancer. Additionally‚ with high amounts of glucose in the bloodstream‚ the glucose connects with the endothelium of the blood vessel wall and inhibits the cells to produce
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melting points. So assignment of presumptive identity can be done my taking the melting point of a PURIFIED osazone from a purified carbohydrate. | yellow to pale orange osazone crystals | MUCIC ACID | 5N Nitric Acid | | Monosaccharides‚ upon treating with strong oxidizing agents such as nitric acid‚ yield saccharic acids. The saccharic acid obtained after the oxidation of galactose is insoluble and separates as gritty crystals. This acidic derivative is known as mucic acid‚ thus the name for the
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the reaction. The redox reaction can also be identified by how the reaction began first with an element‚ copper‚ before forming a compound of copper nitrate. After nitric acid was added and the copper turnings began to dissolve‚ a chemical change was observed since small amounts of dark‚ brown gas was released in the form of nitrogen oxide. The production of a gas makes this a gas formation reaction as well. It is also important to note that NO2 is one of the main contributors of air pollution. Then
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Copper + nitric Cu + 4HNO3 acid à copper(II) à Cu(NO3)2 + nitrate + nitrogen 2NO2 + 2H2O dioxide + water Combination?? -The liquid inside seems to change to green -Brown gas seems to form -Bubbles seem to form -Green liquid changes to blue 5 Copper(II) nitrate + sodium hydroxide à copper(II) hydroxide + sodium nitrate Cu(No3)2 + 2NaOH à Cu(OH)2 + 2NaNO3 Double Replacement -A solid seems to form 6 Copper(II) hydroxide à copper(II) oxide + water
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dolomite lime‚ quicklime and slaked lime. Calcium carbonate occurs in nature as limestone in various forms‚ such as marble‚ chalk and coral. It is produced either as powdered or precipitated calcium carbonate. Calcium carbonate decomposes to calcium oxide and CO2 on heating. Treatment with dilute mineral acids produces corresponding calcium salts with liberation of CO2: CaCO3 + 2HNO3 Ca(NO3)2 + H2O + CO2(g) In this experiment‚ the mineral acid is added in excess to the calcium
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gasoline and other fuels in automobiles‚ trucks‚ and jet airplanes produce the most common pollutants‚ nitrogen oxides‚ gaseous hydrocarbons‚ and carbon monoxide‚ as well as particles of matter like lead. When nitrogen oxides combine with hydrocarbons they form other types of pollutants‚ like ozone‚ peroxyacetylnitrate which stings the eyes‚ and nitrogen dioxide which forms when nitrogen oxides react with oxygen. In cities where transportation is the major cause of pollution‚ nitrogen dioxide colors the
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