How do you use the span and wagner equation of state (EOS) to calculate the mass of CO2 in a given volume of cylinder?

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Antonin Chapoy

Johnson Jimba - You can calculate the density of pure CO2 at T and P of the cylinder.

Johnson Jimba

Antonin Chapoy, Thank you. Although I've done that already and I have my values, but I'm just wondering if these values are sufficient to determine the mass of the of the CO2. NB the volume of the cylinder is the known volume, and not the volume of the CO2 it self.