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Join Date: September 10th 2009

Angry September 13th 2009, 02:53 PM


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]



18.9kg
31.9kg
37.8kg
115.1kg

i guess it's not 18.9 ......................

Last edited by noise94; September 13th 2009 at 03:37 PM. Reason: Merged posts.