Question

A solution contains 10.0 g pentane, C5H12, 10.0 g hexane, C6H14 and 10.0 g benzene, C6H6. What is the mole fraction of hexane?

I figured the equation would be:
___ M Hexane x 10
Divided by
30
=Mole fraction of Hexane?
bobpursley
Nope.

figure the moles of each.
molefraction=moleshezane/(molesHexane+molebenzene+molespentane)

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