Mole Fractions

I can do everyhthing the questions asks with no problem, excep the mole fraction part for some reason - taking the example of CO, why is it's mole fraction 0.9/2.8 ? (I know where the 0.9 came from, but where did 2.8 materialise from? - should it now be 3 instead)

Reply 1

* Dain Bramaged *

9

TheLoneRanger

I can do everyhthing the questions asks with no problem, excep the mole fraction part for some reason - taking the example of CO, why is it's mole fraction 0.9/2.8 ? (I know where the 0.9 came from, but where did 2.8 materialise from? - should it now be 3 instead)

hey, its just the some of all the moles added up.
e.g. 0.9 add 1.8 add 0.1 = 2.8

then divide one of these by this to find the mole fraction.

hope that helped

Reply 2

* Dain Bramaged *

9

dunno why they have divided h2 by 3, but the mpa is still right

Reply 3

TheLoneRanger

OP

7

* Dain Bramaged

hey, its just the some of all the moles added up.
e.g. 0.9 add 1.8 add 0.1 = 2.8

then divide one of these by this to find the mole fraction.

hope that helped

Cheers