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Sagot :
941539.2 g of mass of oxygen is produced when 2000 kg of aluminium oxide is completely electrolysed.
What is electrolysis?
Electrolysis is the process by which electric current is passed through a substance to effect a chemical change.
The mass of aluminium oxide Al₂O₃ = 2000 kg = 2000 000 g
Molar mass of Al₂O₃ = 101.96 g/mol
no of moles = [tex]\frac{mass }{ molar \;mass}[/tex]
no of moles of Al₂O₃ = [tex]\frac{2000 000 g}{101.96 g/mol}[/tex]
no of moles of Al₂O₃ = 19615.4 mol
From the reaction:
4Al + 3O₂ ⇒ Al₂O₃
To determine the moles of O₂ in Al₂O₃:
Then;
19615.4 mol X [tex]\frac{3}{2}[/tex] mol of O₂ = 29423.1
The mass of oxygen now = 29423.1 × 32 g
= 941539.2 g
Hence, 941539.2 g of mass of oxygen is produced when 2000 kg of aluminium oxide is completely electrolysed.
Learn more about electrolysis here:
https://brainly.com/question/18734579
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