A sample of natural gas is 85.2% methane and 14.8 % ethane by mass. What is the density of this mixute at `18^(@)C` and 784 mm Hg ?

What is the molar mass of a gas that has a density of 5.66g L^(-1) at 35^(@)C and 745mm Hg?

A pure gas that is 14.3% hydrogen and 85.7% carbon by mass has a density of 2.5g L^(-1) at 0^(@)C and 1 atm pressure. What is the molecular formula of the gas :

A pure gas that is 14.3% hydrogen and 85.7% carbon by mass has a density of 2.5g L^(-1) at 0^(@)C and 1 atm pressure. What is the molecular formula of the gas :

A pure gas that is 14.3% hydrogen and 85.7% carbon by mass has a density of 2.5g L^(-1) at 0^(@)C and 1 atm pressure. What is the molecular formula of the gas :

A certain mass of dry gas at 27^(@)C and 760 mm pressure has density 28 . What will be its density at 7^(@)C and 740 mm ?

A certain mass of dry gas at 27^(@)C and 760 mm pressure has density 28 . What will be its density at 7^(@)C and 740 mm ?

A given mass of a gas occupies 572 cm^3 at 13^@c and 725 mm Hg pressure. What will be its volume at 24^@C and 792 mm Hg pressure