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Answer on Inorganic Chemistry Question for khadijah

Question #22101
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?
Expert's answer
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

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