The mass of 216.5 mL of a gas at S.T.P. is found to be 0.6862 g. Calculate the molecular mass of the gas. Also calculate its atomic mass if the gas is diatomic.

The mass of 216.5 mL of a gas at S.T.P. is found to be 0.6862 g. Calcu

1.	The mass of 216.5 mL of a gas at S.T.P. is found to be 0.6862 g. Calculate the molecular mass of the gas. Also calculate its atomic mass if the gas is diatomic.
Answer» Solution :Molecular MASS = 71 AMU, ATOMIC mass = 35.5 amu