Question

A gaseous mixture contains 415.0 tour H2 (g), Torr N2 (g), and 92.1 Torr Ar (g). Caluclate the mole fraction, x, of each of these gases. XH2=?, XN2=?, XAr=?

Answer 1

lets,

We can express the mole function X_i  of an individual gas i in a mixture in terms of the component's

partial pressure P_i

$X_{i}=\frac{P_{i}}{P_{tota}}$ .........................................(1)

...............................(2)

the value of  

  

  $X_{H_{2}}=\frac{415.0}{922.1}=0.4500$

  $X_{N_{2}}=\frac{415.0}{922.1}=0.4500$

  $X_{Ar}=\frac{92.1}{922.1}=0.0999$

H₂ mole fraction =.4500

N₂ mole fraction =.4500

Ar mole fraction is =.0999