Posted by Devanshu on Thursday, June 3, 2010 at 9:12am.
A strange question.
I would start by determining the formula of the oxide.
N = 30.4%
O = 69.6%
moles N = 30.4/14 = ??
moles O = 69.6/16 = ??
determine ratio of mols to each other and divide molar mass of the oxide by 32 to obtain the density relative to oxygen. Post your work if you get stuck.
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