how to calculate mole fraction?
- ?Lv 75 months agoFavourite 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
- JimLv 75 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).