A large electrolysis cell that produces metallic aluminum from Al2O3 by the Hall-Heroult process is capable...
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large electrolysis cell that produces metallic aluminum from Al2O3
by the Hall-Heroult process is capable...
The extraction of aluminum metal from the aluminum hydroxide found in bauxite by the Hall-Héroult process...
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: 2AlOH3(s)→ Al2O3(s)+ 3H2O(g) In the second step, alumina Al2O3 and carbon react to form aluminum and carbon dioxide: 2Al2O3(s)+ 3C(s)→ 4Al(s)+ 3CO2(g) Suppose the...
Metallic aluminum can be made by the electrolysis of molten A.O. (a) What mass of N...
Metallic aluminum can be made by the electrolysis of molten A.O. (a) What mass of N is formed by passing a current of 7.65 A through molten Al., for 3.80 days? The unbalanced chemical reaction representing this electrolysis is shown below. Alo Alto g of Al is formed by this electrolysis, (b) How many minutes are needed to plate out 20.00 g of Al from molten Als, using 7.48 A current? minutes are needed
QUESTION 18 1 points Save Answer Consider the Hall-Herault process for aluminum extraction. Aluminum ore Al203...
QUESTION 18 1 points Save Answer Consider the Hall-Herault process for aluminum extraction. Aluminum ore Al203 melts at 935°C and forms eutectic mixture of NaF and AlF3. Once aluminum is in the melt in ionic form (Al), electrolysis is performed, in the presence of oxygen, using carbon anode. Anode reacts during the electrolysis and has to be replaced. Calculate the standard cell voltage in V from thermodynamic data. (2A1203 + 3 ? ? 4 AI + 3 CO2). Express using...
Aluminum metal is produced by electrolysis from molten aluminum oxide. The cell operates at 8.0V with...
Aluminum metal is produced by electrolysis from molten aluminum oxide. The cell operates at 8.0V with a current of 4.0 *104 amps. How many kilowatt hours of electricity is used to produce 1.00kg of aluminum metal?
The extraction of aluminum metal from the aluminum hydroxide in bauxite ore by the Hall-Héroult process...
The extraction of aluminum metal from the aluminum hydroxide in bauxite ore by the Hall-Héroult process is one of the most remarkable success stories of late 19th century practical 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 and water: 2AlOH3 (s) → Al2O3 (s) + 3H2O (g) In the second step, alumina and carbon react to form aluminum and carbon dioxide: 2Al2O3...
Consider a process of electrolysis of Ag from AgNO3 solution with a constant current of 16...
Consider a process of electrolysis of Ag from AgNO3 solution with a constant current of 16 A. Determine time (in minutes) required to coat one side of a 10x10 cm square plate with Ag if the required coating thickness is 0.27 mm. (Density of Ag is 10.5 g/cm ; assume that the coating covers the surface homogeneously; round your answer up to one decimal place).
Decision Making Using Process Cost Data Hall Company produces synthetic materials from a chemical extrusion process...
Decision Making Using Process Cost Data Hall Company produces synthetic materials from a chemical extrusion processes. Management has been concemed that material costs per pound are too high. Hall produces only a single product on four separate extrusion lines. The product is processed over two shifts per day. The following data have been collected for analysis: January Total materials costs $335,050 Total number of pounds produced. 50,400 Cost per pound. $6.65 Materials Costs by Production Line Line 2 $36,000 45.500...
Abrasive Corp. (Use this information for the next 6 questions) Abrasives Corp. manufactures industrial diamonds for...
Abrasive Corp. (Use this information for the next 6 questions) Abrasives Corp. manufactures industrial diamonds for use in the cutting, machining and drilling industries. They produce the highest quality diamonds in the industry, and can sell any amount they can produce for $5 per carat. Abrasive Corp runs 24 hours per day, 7 days per week. Abrasive Corp.'s production process has six steps: Graphite Core Manufacturing: There are two machines, each capable of producing 14 cores per hour. Ceramic Tube...
15. Combining raw materials M and M2 and labor, a company produces units of A. B, and C. The requ...
15. Combining raw materials M and M2 and labor, a company produces units of A. B, and C. The requirements and profit (excluding the cost of labor) for the production and sale of a unit of each are as follows: Mi (lb) M2 (lb) Labor (hr) Profit (S) 105 165 60 12 For the next month, the company has available 1 ton of Mi. 2.5 tons of M2, 500 hr of labor at $18/hr, and up to an additional 120...
Case 12-29 Sell or Process Further Decision (LO12-7] The Scottie Sweater Company produces sweaters under the...
Case 12-29 Sell or Process Further Decision (LO12-7] The Scottie Sweater Company produces sweaters under the "Scottie" label. The company buys raw wool and processes it into wool yarn from which the sweaters are woven. One spindle of wool yarn is required to produce one sweater. The costs and revenues associated with the sweaters are given below: Per Sweater $ 31.00 $ Selling price Cost to manufacture: Raw materials: Buttons, thread, lining Wool yarn Total raw materials Direct labor Manufacturing...
Metallic aluminum can be made by the electrolysis of molten A.O. (a) What mass of N is formed by passing a current of 7.65 A through molten Al., for 3.80 days? The unbalanced chemical reaction representing this electrolysis is shown below. Alo Alto g of Al is formed by this electrolysis, (b) How many minutes are needed to plate out 20.00 g of Al from molten Als, using 7.48 A current? minutes are needed
QUESTION 18 1 points Save Answer Consider the Hall-Herault process for aluminum extraction. Aluminum ore Al203 melts at 935°C and forms eutectic mixture of NaF and AlF3. Once aluminum is in the melt in ionic form (Al), electrolysis is performed, in the presence of oxygen, using carbon anode. Anode reacts during the electrolysis and has to be replaced. Calculate the standard cell voltage in V from thermodynamic data. (2A1203 + 3 ? ? 4 AI + 3 CO2). Express using...
Consider a process of electrolysis of Ag from AgNO3 solution with a constant current of 16 A. Determine time (in minutes) required to coat one side of a 10x10 cm square plate with Ag if the required coating thickness is 0.27 mm. (Density of Ag is 10.5 g/cm ; assume that the coating covers the surface homogeneously; round your answer up to one decimal place).
Decision Making Using Process Cost Data Hall Company produces synthetic materials from a chemical extrusion processes. Management has been concemed that material costs per pound are too high. Hall produces only a single product on four separate extrusion lines. The product is processed over two shifts per day. The following data have been collected for analysis: January Total materials costs $335,050 Total number of pounds produced. 50,400 Cost per pound. $6.65 Materials Costs by Production Line Line 2 $36,000 45.500...
Abrasive Corp. (Use this information for the next 6 questions) Abrasives Corp. manufactures industrial diamonds for use in the cutting, machining and drilling industries. They produce the highest quality diamonds in the industry, and can sell any amount they can produce for $5 per carat. Abrasive Corp runs 24 hours per day, 7 days per week. Abrasive Corp.'s production process has six steps: Graphite Core Manufacturing: There are two machines, each capable of producing 14 cores per hour. Ceramic Tube...
15. Combining raw materials M and M2 and labor, a company produces units of A. B, and C. The requirements and profit (excluding the cost of labor) for the production and sale of a unit of each are as follows: Mi (lb) M2 (lb) Labor (hr) Profit (S) 105 165 60 12 For the next month, the company has available 1 ton of Mi. 2.5 tons of M2, 500 hr of labor at $18/hr, and up to an additional 120...
Case 12-29 Sell or Process Further Decision (LO12-7] The Scottie Sweater Company produces sweaters under the "Scottie" label. The company buys raw wool and processes it into wool yarn from which the sweaters are woven. One spindle of wool yarn is required to produce one sweater. The costs and revenues associated with the sweaters are given below: Per Sweater $ 31.00 $ Selling price Cost to manufacture: Raw materials: Buttons, thread, lining Wool yarn Total raw materials Direct labor Manufacturing...
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