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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: 2AI(OH),(s) Al₂0,(3) Al2O3(s) + 3H2O(g) In the second step, alumina (Al2O3) and carbon react to form aluminum and carbon dioxide: 2ALO3(s) + 3C(s) -> 4Al(s) + 3 CO2 (g) Suppose the yield of the first step is 91.% and the yield of the second step is 95.%. Calculate the mass of aluminum hydroxide required to make 8.0 kg of aluminum. Be sure your answer has a unit symbol, if needed, and is rounded to the correct number of significant digits.

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: 2AI(OH),(s) Al₂0,(3) Al2O3(s) + 3H2O(g) In the second step, alumina (Al2O3) and carbon react to form aluminum and carbon dioxide: 2ALO3(s) + 3C(s) -> 4Al(s) + 3 CO2 (g) Suppose the yield of the first step is 91.% and the yield of the second step is 95.%. Calculate the mass of aluminum hydroxide required to make 8.0 kg of aluminum. Be sure your answer has a unit symbol, if needed, and is rounded to the correct number of significant digits.

General Chemistry - Standalone book (MindTap Course List)
General Chemistry - Standalone book (MindTap Course List)
11th Edition
ISBN:9781305580343
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Publisher:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Chapter21: Chemistry Of The Main-group Elements
Section: Chapter Questions
Problem 21.200QP
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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: 2AI(OH),(s) Al₂0,(3) Al2O3(s) + 3H2O(g) In the second step, alumina (Al2O3) and carbon react to form aluminum and carbon dioxide: 2ALO3(s) + 3C(s) -> 4Al(s) + 3 CO2 (g) Suppose the yield of the first step is 91.% and the yield of the second step is 95.%. Calculate the mass of aluminum hydroxide required to make 8.0 kg of aluminum. Be sure your answer has a unit symbol, if needed, and is rounded to the correct number of significant digits.
Transcribed Image Text: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: 2AI(OH),(s) Al₂0,(3) Al2O3(s) + 3H2O(g) In the second step, alumina (Al2O3) and carbon react to form aluminum and carbon dioxide: 2ALO3(s) + 3C(s) -> 4Al(s) + 3 CO2 (g) Suppose the yield of the first step is 91.% and the yield of the second step is 95.%. Calculate the mass of aluminum hydroxide required to make 8.0 kg of aluminum. Be sure your answer has a unit symbol, if needed, and is rounded to the correct number of significant digits.
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