Calculate the relative density of oxygen in nitrogen and in air.

1. Determine the relative density of nitrogen:

DN2 (O2) = M (O2): M (N2);

M (O2) = 16 * 2 = 32 g / mol;

M (N2) = 14 * 2 = 28 g / mol;

DN2 (O2) = 32: 28 = 1.1429;

2.find the relative density by air:

Dair (O2) = M (O2): M (air);

M (air) = 29 g / mol;

Dair (O2) = 32: 29 = 1.1034.

Answer: DN2 (O2) = 1.1429; Dair (O2) = 1.1034.



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