How much aluminum can be retrieved from 55.6 g of aluminum oxide, #Al_2O_3#?

1 Answer
Jan 29, 2017

Answer:

Approx. #30*g# of aluminum metal

Explanation:

#"Moles of alumina"# #=# #(55.6*g)/(101.96*g*mol^-1)=0.545*mol#.

Given that each mole of alumina contains 2 moles of aluminum metal, there are #1.09*molxx26.98*g*mol^-1=??g#

The production of aluminum from alumina is highly energy intensive, even given that aluminum (as #Al_2O_3#) is the third most abundant element in the Earth's crust. The aluminum-oxygen bond is very strong, and much electrical energy must be supplied for reduction.