Question

What pressure does a `1*g` mass of gas exert when confined to a `1*L` volume at a temperature of `298*K`?

Answer 1

You will have to reframe this question......

Explanation:

On what gas do you experiment?

We could assume ideality...and thus `P=(nRT)/V`...but we need to the molar mass of the gas in order to assess the number of moles corresponding to the `1*g` mass; i.e. `n_"moles of gas"="mass"/"molar mass of gas"`...