`1050cm^3` of a gas measured at STP weighis 3 g. Catculate the mass of a molecule of the gas.

One mole of an ideal gas occupies 22.4L at STP. Calculate the mass of 11.2L of oxygen gas at STP.

What is the molar volue of a gas at STP?

The energy of gas molecules are.....

A welding fuel gas contains carbon and hydrogen only. Burning a small sample of î in oxygen gives 3.38 g carbon dioxide, 0.690 g of water and no other products. A volume of 10.0 L (measured at STP) of this welding gas is found to weigh 11.6 g. Calculate (i) empirical formula, (ii) molar mass of the gas, and (iii) molecular formula.

A cooking gas contains carbon and hydrogen only. A volume of 11.2 L of this gas is found to weigh 22g at STP. Then the molecular formula of the gas is