`1.4dm^3 `of a gas at a STP Weighs `1.26 XX 10^3 Kg`.
mass of 1 mole

1.4dm^3 of a gas at a STP Weighs 1.26 XX 10^3 Kg . molecular mass

1 mole of a gas is

1 litre of a gas at STP weights 1.35 gram. The molar mass of the gas is

1 atom of an element weighs 1.792xx10^(-22)g . The atomic mass of the element is

A planet with the diameter and mass, both one third of those of the earth has surface temperature around 1000 K. Is it possible to find oxygen molecules around the atmosphere of the planet? (Given: Boltzmann constant = 1.38 xx 10^-23 J/K , Mass of oxygen molecule = 5.3 xx 10^-26 kg )

The volume of a given mass of a gas at 12^(@)C is 2 dm^(3) . The temperature at which of the same gas has volume of 3.4dm^(3) is "__________" .

11.2 cm^3 of oxygen gas at STP contains _______moles of oxygen gas.

The volume of a given mass of a gas at 0^@C is 2 dm^3. Calculate the new volume of the gas at constant pressure when :The temperature is decreased by 10^@C.