At `0^@C`, the density of a certain oxide of a gas at 2 bar is the same as that of `N_2` at 5 bar. What is the molecular mass of the oxide?

If the vapour density of a gas with respect to methane is 2, molecular mass of the gas will be

2.9g of a gas 95^@C occupied the same volume as 0.184g of H_2 at 17^@C at the same pressure. What is the molar mass of the gas?

The density of a gas was found to be 2.92gl^-1 at 27^@C and 2.0 atm. Calculate the molar mass of the gas.

The vapour pressure of pure benzene at a certain temperature is 0.850 bar. A non-volatile, non-electrolyte solid weighing 0.5g when added to 39g of benzene (molar mass 78g mol^(-1) ), vapour pressure becomes 0.845 bar. What is the molar mass of the solid substance ?

The density of gas was found to be 2.92 g L^(-1) at 27° C and 2.0 atm . Calculate the molar mass of the gas.

The density of a certain mass of gas at 27^(@)C and 1 atm pressure is 3.4 g L^(-1) . The density at 327^(@)C and 0.5 atmpressure will be