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A gas mixture of hydrogen, helium and argon was measured to have the following composition. If the gas mixture only contain the above three gases, what is the mass fraction of argon in this mixture?

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anfabba15

Answer:

Mass of Ar / Total mass = Mass fraction of Ar

Explanation:

In a mixture, you have three gases:

H₂ + He + Ar

To determinate the mass fraction or argon, you should sum all the mases:

Mass of H₂ + Mass of He + Mass of Ar = Total mass

Afterwards, divide Mass of Ar / Total mass, to find out the mass fraction

Mass of Ar / Total mass = Mass fraction of Ar

You can also x100, to get the mass fraction by %

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