Adiatomic gas has the molar mass 38.00 g/mol, what is a possible formula?

Diatomic gases are gases that must be composed of two atoms of the particular gas such as H2 or N2. Therefore, the molar mass 38 g/mol is made up of 2 atoms, so the molar mass of one atoms would be 19 g/mol (38/2). Then when you look at a periodic table, the gas with a molar mass of approximately 19 g/mol is F, which is F2 because it is diatomic.

Hope this helps

668900 atoms in total

The gas would begin to expand, and eventually the can would burst or explode.