Posted by **Amanda** on Tuesday, November 16, 2010 at 9:56pm.

Calculate the mass of air in an air-filled tire and the mass of helium in a helium-filled tire. What is the mass difference between the two? Assume that the volume of the tire is 857 , that it is filled with a total pressure of 125 psi, and that the temperature is 26 . Also, assume an average molar mass for air of 28.8 .

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