A large flask fitted with a stop-cock is evacuated and weighed; its mass is found to be 134.567g . It is then filled to a pressure of 735mm at 31^†extdegree C with a gas of unknown molecular mass and then reweighed; its mass is 137.456g. The flask is then filled with water and weighed again ; its mass is now 1067.9g . Assuming that the gas is ideal , calculate the molar mass of the gas.

A large flask fitted with a stop-cock is evacuated and weighed; its ma

1.	A large flask fitted with a stop-cock is evacuated and weighed; its mass is found to be 134.567g . It is then filled to a pressure of 735mm at 31^†extdegree C with a gas of unknown molecular mass and then reweighed; its mass is 137.456g. The flask is then filled with water and weighed again ; its mass is now 1067.9g . Assuming that the gas is ideal , calculate the molar mass of the gas.
Answer» A large flask fitted with a stop-cock is evacuated and weighed; its mass is found to be 134.567g . It is then filled to a pressure of 735mm at 31^†extdegree C with a gas of unknown molecular mass and then reweighed; its mass is 137.456g. The flask is then filled with water and weighed again ; its mass is now 1067.9g . Assuming that the gas is ideal , calculate the molar mass of the gas.