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Test: MCAT Physical
| 1. | Air is composed of about 78% nitrogen (molecular mass = 28 g/mole), 21% oxygen (molecular mass = 32 g/mole), and 1% argon (40 g/mole). The weighted average of these numbers leads to the approximation that if air was a pure gas, its “molar mass” would be about 29 g/mole. Helium has a molar mass of 4 g/mole. What is the volume of helium gas required to lift a balloon carrying a 100 gram sensor?
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Payton
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Certified Tutor
The University of Texas at Austin, Current Undergrad Student, Biology, General.
Jordan
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The University of Texas at Dallas, Bachelor of Science, Neuroscience. The University of Texas Health Science Center at Housto...
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