1.

The mass of oxygen gas which occupies 5.6 litres at STP would be

Answer»

The gram atomic mass of OXYGEN
One fourth of the gram atomic mass of oxygen
Double the gram atomic mass of oxygen
HALF of the gram atomic mass of oxygen.

Solution :22.4 L of `O_2` gas at STP has mass = 32 g
5.6 L of `O_2` gas at STP has mass ` = (32 XX 5.6)/(22.4) = 8 g `
8 g of corresponds to half of the atomic mass oxygen .


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