500 kg of bauxite contains 60.0% Al2O3. The Baeyer leaching step recovers 85.0% of the alumina as pure Al2O3, and electr

Question

500 kg of bauxite contains 60.0% Al2O3. The Baeyer leaching step recovers 85.0% of the alumina as pure Al2O3, and electrolysis in the Hall-Heroult cell converts 92.0% of that alumina to aluminium. Taking Al = 27 and O = 16, the mass of aluminium obtained is

Accepted Answer

124.2 kg

Answer

135.0 kg

Answer

158.8 kg

Answer

146.1 kg

500 kg of bauxite contains 60.0% $Al X_{2} O X_{3}$ . The Baeyer leaching step recovers 85.0% of the alumina as pure $Al X_{2} O X_{3}$ , and electrolysis in the Hall-Heroult cell converts 92.0% of that alumina to aluminium. Taking Al = 27 and O = 16, the mass of aluminium obtained is

Answer: C

More questions on Ellingham diagrams and thermodynamics of reduction

500 kg of bauxite contains 60.0% AlX2​OX3​. The Baeyer leaching step recovers 85.0% of the alumina as pure AlX2​OX3​, and electrolysis in the Hall-Heroult cell converts 92.0% of that alumina to aluminium. Taking Al = 27 and O = 16, the mass of aluminium obtained is

Answer: C

More questions on Ellingham diagrams and thermodynamics of reduction

500 kg of bauxite contains 60.0% $Al X_{2} O X_{3}$ . The Baeyer leaching step recovers 85.0% of the alumina as pure $Al X_{2} O X_{3}$ , and electrolysis in the Hall-Heroult cell converts 92.0% of that alumina to aluminium. Taking Al = 27 and O = 16, the mass of aluminium obtained is