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- For eac te, click the button under the better solvent. solute Which is the better solvent? :0: || :0: :0: CH,-S CH, НО -С — СH, — CH, — С — ОН CH;CH,OH CH; H C H||| ANAN Microsoft O V The extraction of aluminum metal from the aluminum hydroxide found in bauxite by the Hall-Héroult process is one of the most remarkable success stories of 19th century chemistry, turning aluminum from a rare and precious metal into the cheap commodity it is today. In the first step, aluminum hydroxide reacts to form alumina (Al₂O3) and water: 2Al(OH)3(s) → Al₂O3(s) + 3H₂O(g) W Microsoft CHEMICAL REACTIONS Reaction sequence stoichiometry Microsoft 6.52.210... esc In the second step, alumina (Al2O3) and carbon react to form aluminum and carbon dioxide: 2Al₂O3(s) + 3C(s) → 4Al(s) + 3 CO₂ (8) Suppose the yield of the first step is 91.% and the yield of the second step is 85.%. Calculate the mass of aluminum hydroxide required to make 6.0 kg of aluminum. Be sure your answer has a unit symbol, if needed, and is rounded to the correct number of significant digits. Explanation Check 9,269 Q x10 HH 103 X OCT 24 ロ・ロ S OOO tv NONZA © 2022 McGraw Hill LLC. All Rights…500.0 mL of 0.100 mol·L HCl(aq) was added to a high quality insulated calorimeter containing 500.0 mL of 0.100 mol·LNaOH(aq). Both solutions had a density of 1.000 g·mL and a specific heat of 4.184 J·g ·K . The calorimeter had a heatcapacity of 850.0 J·K . The temperature of the entire system rose from 25.50 C to 26.05 C.Calculate the heat of reaction. Thank you!
- Based on the reactions: 2NO2 (g) + 2N0 (g) + O2 (g) – – > 2N½O4 (g) ; AH = -228.54 kJ 4NO (g) +2N2O (g) + 50, (5) – – > 4N,O4 (g) ; AH,=-488.46 kJ 2NO (g) + O2 (g) – - > N,O4 (g) ; AH3 = –171.34 kJ- Use Hess's Law to calculate AH for: 4N204 (g) - - > 2N½O (g) + 302 (9) + 4NO2 (g)5. Which one of the following equations represents the formation reaction of ethanol, CH3CH2OH (/). (a) 2C(g) + 2H2(g) + 1/202(g) → CH3CH2OH() (b) 2C(g) + 6H(g) + O(g) → CH3CH2OH (1) (c) 2C(graphite) + 6H(g) + O(g)-> CH3CH2OH (/) (d) 2C(diamond)+ 6H(g) + O(g)-> CH3CH2OH() (e) 2C(graphite)+ 3H2(g) + 1/202(g) → CH3CH2OH(/) Select the correct answer:ebixoiC 4 During the production of ammonia, hydrogen is produced from the steam reforming of methane. In the reformer methane gas is reacted with excess water and the resulting mixture is found to contain 12 kg of hydrogen and 15 kg water. Assuming all the methane is reacted calculate the amount of water used.
- Write a balanced chemical equation for the reaction that occurswhen (a) titanium metal reacts with O2(g); (b) silver(I)oxide decomposes into silver metal and oxygen gas whenheated; (c) propanol, C3H7OH(l) burns in air; (d) methyltert-butyl ether, C5H12O(l), burns in air.The extraction of aluminum metal from the aluminum hydroxide found in bauxite by the Hall-Héroult process is one of the most remarkable success stories of 19th century chemistry, turning aluminum from a rare and precious metal into the cheap commodity it is today. In the first step, aluminum hydroxide reacts to form alumina (Al,0,) and water: 2Al(OH), (s) Al,0; (s) + 3 H,0 (g) - In the second step, alumina (Al,0,) and carbon react to form aluminum and carbon dioxide: 2Al,0; (s) + 3C(s) → 4Al(s) + 3 CO, (g) Suppose the yield of the first step is 82.% and the yield of the second step is 69.%. Calculate the mass of aluminum hydroxide required to make 10.0 kg of aluminum. Be sure your answer has a unit symbol, if needed, and is rounded to the correct number of significant digits. x10Approximately 12 billion kilograms of phosphoric acid (H3PO4) are produced annually for fertilizers, detergents, and agents for water treatment. Phosphoric acid can be prepared by heating the mineral fluoroapatite (Ca5(PO4)3F) with sulphuric acid in the presence of water. Ca5(PO4)3F + 5H2SO4 + 10H20 → 3H3PO4 + 5CaSO4 2H20 + HF If every kilogram of fluoroapatite yields 390 g of phosphoric acid, what is the percent yield? percent
- Approximately 12 billion kilograms of phosphoric acid (H3PO4) are produced annually for fertilizers, detergents, and agents for water treatment. Phosphoric acid can be prepared by heating the mineral fluoroapatite (Ca5(PO4)3F) with sulphuric acid in the presence of water.Ca5(PO4)3F + 5H2SO4 + 10H2O → 3H3PO4 + 5CaSO4.2H2O + HFIf every kilogram of fluoroapatite yields 374 g of phosphoric acid, what is the percent yield?6. The oxidation of methylhydrazine, N,H,CH,(1), by dinitrogen tetroxide, N,O,(1), was used for propulsion in the Space Shuttle orbiter. This reaction is represented by the equation 4 N,H,CH;(1) + 5 N,0,(1) → 12 H,O(g) + 9 N,(g) + 4 CO,(g) The enthalpy of formation for liquid methylhydrazine is +53 kJ/mol and the enthalpy of formation for liquid dinitrogen tetroxide is -20 kJ/mol. Calculate AH° for this reaction. KU ABalance the following equations. (Use the lowest possible whole number coefficients. Include states-of- matter in your answers.) (a) Mn(s) + O2(g) → Mn2 07 (8) + (b) N₂(g) + O2(g) → N₂O(g) + (c) C10H22 (1) + O2(g) → CO₂(g) + H₂O(1) +
