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.
ScanSolve AI Answer
Step 1: Identify Gas K and Gas F. Gas K: In the roasting furnace, copper pyrites (CuFeS_2) are heated in air, converting sulfides to oxides and releasing sulfur dioxide gas. 2CuFeS_2(s) + 4O_2(g) Cu_2S(s) + 2FeO(s) + 3SO_2(g) Therefore, Gas K is sulfur dioxide. Gas F: Gas F is produced in Chamber W (the converter), where matte (Cu_2S) is converted to blister copper. This process also releases sulfur dioxide. 2Cu_2S(l) + 3O_2(g) 2Cu_2O(l) + 2SO_2(g) 2Cu_2O(l) + Cu_2S(l) 6Cu(l) + SO_2(g) Therefore, Gas F is sulfur dioxide. a) Identify: i) Gas K: SO_2 ii) Gas F: SO_2 Step 2: Write equations for the reactions in the roasting furnace and absorption tower. i) Roasting furnace: Copper pyrites (CuFeS_2) are roasted in air. 2CuFeS_2(s) + 4O_2(g) Cu_2S(s) + 2FeO(s) + 3SO_2(g) ii) Absorption tower: In the absorption tower, sulfur trioxide (Gas C) reacts with concentrated sulfuric acid to form oleum (Compound T). SO_3(g) + H_2SO_4(l) H_2S_2O_7(l) b) Write equations for the reactions that takes place in the: i) Roasting furnace: 2CuFeS_2(s) + 4O_2(g) Cu_2S(s) + 2FeO(s) + 3SO_2(g) ii) Absorption tower: SO_3(g) + H_2SO_4(l) H_2S_2O_7(l) Step 3: Write the formula of the cation present in slag M. Slag M is formed in the smelting furnace when iron(II) oxide (FeO) reacts with silica (SiO_2) to form iron(II) silicate (FeSiO_3). FeO(s) + SiO_2(s) FeSiO_3(l) In iron(II) silicate, the iron is in the +2 oxidation state. c) Write the formula of the cation present in the slag M: Fe^2+ Last free one today — make it count tomorrow, or type /upgrade for unlimited.