Answer to Question #22101 in Inorganic Chemistry for khadijah

Question

Aluminum oxide is decomposed using electricity to produce aluminum metal. How many grams of aluminum metal can be produced from 100.0 g of Al2O3?

Answer 1

Aluminum oxide is decomposed using electricity toproduce aluminum metal by next reaction:

2Al₂O₃ ---> 4Al + 3O₂

Now it is possible to calculate mass of aluminum metal:

100g Al₂O₃ * (1 mole Al₂O₃/ 102g Al₂O₃) * (4 mol Al/ 2 mol Al₂O₃) * (27g Al/ 1mol Al) = 52.9412 g Al