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
and water:
In the second step, alumina
and carbon react to form aluminum and carbon dioxide:
Suppose the yield of the first step is
and the yield of the second step is
. Calculate the mass of aluminum hydroxide required to make
of aluminum.
Be sure your answer has a unit symbol, if needed, and is rounded to the correct number of significant digits.
Extraction is the process of isolating metal from its ore.
Fro this first of all metal ore is converted to metal oxide then metal oxide is reduced to metal.
Reaction for aluminum
Step 1
2Al(OH)3(s) ------> Al2O3(s) + 3H2O(g)
Step 2
2Al2O3(s) + 3C (s) ---> 4Al(s)+ 3CO2(g)
Step by step
Solved in 4 steps
