Mole fraction?

how to calculate mole fraction?

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  • david
    Lv 7
    3 months ago
    Favorite Answer

    mole fraction of substance A   =  moles A / total moles

    =====   mole Fraction H2  =  (moles H2)/(TOTAL moles)  

      moles H2 = 0.015

       total moles = 0.015 + 0.015 + 0.27 = 0.30

      mole FR  H2  =  0.015/0.30  =  1/200  =  0.05

      now you do the other 2 

     

  • Jim
    Lv 7
    3 months ago

    Mole fraction is simply the number of moles of a particular substance compared to the total number of moles. Since the number of moles of one substance in a mixture can never be more than the total number of moles, the mole fraction for a substance always ranges between 0 (none) and 1 (all).

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