weekly math question

[blumpkin blownuts]

not enough info given

if you know the molecular weight of the gas, temperature and pressure then you can use PV=nRT

ρ = m/V is for density of a liquid or non-hollow solid - applying that only gives you the volume of material used in the tank's construction. to get the volume of the tank using this formula you'd also need to know the shape and thickness of the tank