Question

Question #b0875

Answer 1

`m=44.00g/(mol)`
Maybe carbon dioxide (CO2)

Explanation:

I don't have the list of gases you are referring to, but I can explain how to get to the answer. Here is the ideal gas law:

`P*m=D*R*T`

where `P` is the pressure, `m` is the molecular mass, `D` is the density of the gas, `R` is the gas constant, and `T` is the temperature. We know the values of all the variables except `m`.

`m=(D*R*T)/P`

`m=(1.963 g/L*0.0821(atm*L)/(mol*K)*273K)/(1.00 atm)`

`m=44.00g/(mol)`

Now that you have the wanted molecular mass, you can just find the molecular masses of the gases on your list and see which one matches. My best guess is carbon dioxide (CO2).