34.05 mL of phosphorous vapour weighs 0.0625 g at `546^@C` and 0.1 bar pressure. What is the molar mass of phosphorus?

The density of a gas at 27^@C and 1 bar pressure is 2.56 gL^-1 .Calculate the molar mass.

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

A solutions is prepared by dissolving 394 g of a nonvolatile solute in 622 g of water. The vapour pressure of solution is found to be 30.74 mm Hg at 30^@C . If vapour pressure of water at 30^@C is 31.8mm Hg, what is the molar mass of solute?

A vessel of 120ml capacity contains a certain amount of gas at 35^@C and 1.2 bar pressure. The gas is transferred to another vesse 1 of volume 180mL at 35^@C . What would be its pressure?

The vapour pressurefor purebenzene at a certain temperature is 0.850 bar. A non-volatile, nonelectrolyte solid weighing 0.5 g when added to 39.0 g of benzene (molar mass 78 g mol-1) Vapour pressure of solution, then, is 0.845 bar. What is the molar mass of the solid substance.

Destiny of a gas is found to be 5.46 g//dm^3 at 27^@C at 2 bar pressure. What will be its destiny at STP?

What is the mass of 0.5 mole of ozone molecule?

Calculate the volume occupied by 8.8 g of CO_2 at 31.1^@C and 1 bar pressure.