Goodyear blimps

Columbia, one of the Goodyear blimps, requires 5210 m of helium to fill the balloon at 20°C and 101.3 kPa. Helium may be purchased in standard gas cylinders of 23 cm diameter and 132 cm height pressurized to 15,200 kPa. If Goodyear were to fill the blimp with these cylinders at 32 per cylinder, how much would it cost Helium behaves ideally at these conditions. 

Today, airships are filled with helium (its molar mass is 4 g) and are used principally for advertising and television. A Goodyear blimp can be seen hovering over almost every significant outdoor sporting event. 

In practice, vulcanization was so simple that many persons used it without paying royalties, and Goodyear spent much of his time contesting approximately sixty infringements of his patent. He died a pauper and left behind debts estimated at between 200,000 and 600,000. His name lives on in Goodyear tires and Goodyear blimps. 

The Goodyear blimps, which frequently fly over sporting events, hold approximately 175,000 ft of helium. If the gas is at 23 °C and 1.0 atm, what mass of helium is in a blimp ... 

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