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

[juji]

it's a gas. PV=nRT
since there are initial values missing, assume STP

Are you sure?

[blumpkin blownuts]

Are you sure?

still not enough info given, even assuming STP you still would need to know what gas is in it
the answer is E

[juji]

still not enough info given, even assuming STP you still would need to know what gas is in it
the answer is E

You can just find the missing variable