Mole ConceptMedium
Question
A gaseous oxide contains 30.4% of nitrogen, one molecule of which contains one nitrogen atom. The density of the oxide relative to oxygen under identical conditions is about
Options
A.0.69
B.1.44
C.0.35
D.2.88
Solution
Molecular mass of oxide = $\frac{100}{30.4} \times 14 = 46.05$
Hence, density of oxide relative to oxygen, $\frac{d_{\text{oxide}}}{d_{\text{oxygen}}} = \frac{M_{\text{oxide}}}{M_{\text{oxygen}}} = 1.44$
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