Question

What is the mole fraction of each component gas in a mixture composed of `66.8*g` `"dioxygen"`, `44.1*g` `"dinitrogen"`, and `21.5` `"dihydrogen"`?

Answer 1

Approx...`0.15`

Explanation:

`chi_"component gas"="moles of component gas"/"Total moles of gases in container"`...

...where `chi="mole fraction..."`

And we note that most gases are BINUCLEAR, and so we deal with dioxygen, dinitrogen, dihydrogen, etc...

`chi_(O_2)=((66.8*g)/(32.00*g*mol^-1))/((66.8*g)/(32.00*g*mol^-1)+(44.1*g)/(28.02*g*mol^-1)+(21.5*g)/(2.014*g*mol^-1)`

`=??`

And, clearly, `chi` is a DIMENSIONLESS property...