This chemistry question involves key chemical concepts and calculations. The detailed solution below walks through each step, from identifying the reaction type to computing the final answer.
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Welcome back PRECIOUS — missed you this week. Here's a breakdown of the question about fertilizers: a) i) Describe how each of these acids is manufactured. Step 1: Manufacture of Nitric Acid (Ostwald Process). Ammonia is oxidized to nitrogen monoxide, which is then oxidized to nitrogen dioxide. Nitrogen dioxide is absorbed in water to form nitric acid. 4NH_3(g) + 5O_2(g) Pt/Rh catalyst 4NO(g) + 6H_2O(g) 2NO(g) + O_2(g) 2NO_2(g) 3NO_2(g) + H_2O(l) 2HNO_3(aq) + NO(g) Step 2: Manufacture of Sulfuric Acid (Contact Process). Sulfur is burned in air to produce sulfur dioxide. Sulfur dioxide is then oxidized to sulfur trioxide using a vanadium(V) oxide catalyst. Sulfur trioxide is absorbed in concentrated sulfuric acid to form oleum, which is then diluted with water to produce sulfuric acid. S(s) + O_2(g) SO_2(g) 2SO_2(g) + O_2(g) V_2O_5 catalyst 2SO_3(g) SO_3(g) + H_2SO_4(l) H_2S_2O_7(l) H_2S_2O_7(l) + H_2O(l) 2H_2SO_4(l) a) ii) For each acid, choose one fertilizer and write an equation to show how it is formed from the corresponding acid. Step 3: Fertilizer from Nitric Acid. Ammonium nitrate is a common fertilizer formed by the reaction of nitric acid with ammonia. HNO_3(aq) + NH_3(aq) NH_4NO_3(aq) Step 4: Fertilizer from Sulfuric Acid. Ammonium sulfate is a common fertilizer formed by the reaction of sulfuric acid with ammonia. H_2SO_4(aq) + 2NH_3(aq) (NH_4)_2SO_4(aq) c) What is the use of fertilizers? Step 5: Use of Fertilizers. Fertilizers are used to replenish essential nutrients in the soil, such as nitrogen, phosphorus, and potassium. This helps to improve soil fertility and increase crop yields, leading to healthier and more abundant plant growth. Drop the next question. 📸