How Many Hydrogen Molecules Are in 1cm³ of a Balloon?

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To find the number of hydrogen molecules in 1 cm³ of a balloon containing 1 gram of hydrogen gas, the molar mass of hydrogen is used, which is 2 g/mol. Given that the balloon has a volume of 4 liters, calculations based on the ideal gas law (pV=nRT) lead to a final result of approximately 7.5 x 10^19 molecules per cm³. The discussion also touches on the definition of a mole, emphasizing its relevance in calculating the number of molecules. Understanding these concepts is crucial for solving gas-related problems in chemistry. The calculations confirm the high density of hydrogen molecules in a small volume.
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Homework Statement


In the balloon with volume 4 liters, is 1 gram of hydrogen. How molecules of this gas as found in 1cm3, if the molar mass of hydrogen is 2g/mol?

Homework Equations


pV=nRT

The Attempt at a Solution


in my book the solution final is 7.5*10^19 molecules/cm^3
 
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lindi said:

Homework Statement


In the balloon with volume 4 liters, is 1 gram of hydrogen. How molecules of this gas as found in 1cm3, if the molar mass of hydrogen is 2g/mol?

Homework Equations


pV=nRT

The Attempt at a Solution


in my book the solution final is 7.5*10^19 molecules/cm^3
What's the definition of a mole?
 

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