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Topic: Mass of aluminium oxide  (Read 2567 times)

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Offline shanker

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Mass of aluminium oxide
« on: September 13, 2009, 10:56:09 AM »
What mass of aluminium oxide would need to be electrolysed to produce 20 kg of pure aluminium?

          2Al2O3 → 4Al + 3O2

[Relative atomic masses: Al = 27.0; O = 16.0]


18.9 kg


31.9 kg

  37.8 kg
   
115.1 kg


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