1.

At S.T.P. the volume of 7.5 g of a gas is 5.6 L. The gas is

Answer»

NO
`N_(2)O`
CO
`CO_(2)`

SOLUTION :5.6 L at S.T.P WEIGHS = 7.5 g
`therefore 22.4` L at S.T.P weighs `=(7.5 xx 22.4)/5.6 = 30`
`therefore` Molar MASS = 30 gmol, which is the molar mass of NO.


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