What is the molar mass of a gas or vapours under N.T.P. conditions?

What is molar volume of an ideal gas under N.T.P. conditions ?

What is molar volume of an ideal gas under N.T.P. conditions ?

The compressibility factor (Z) for one mole of a gas is more than one under S.T.P. conditions. Therefore

What is the molar volume of a gas at SATP condition ?

A sample of gaseous substance weighing 0.5 g occupies a volume of 1.12 litres under N.T.P. conditions. Calculate the molar mass of the substance.

The mass of water vapour in air enclosed in a certain space 60g and the mass of water vapour needed to saturate the same air with water vapour under the same condition is 100g.What is the corresponding % relative humidity ?