# What is the mol fraction of water?

##### 1 Answer

Feb 6, 2017

Well, what's the definition of mol fraction?

#chi_i = n_i/(n_1 + n_2 + . . . + n_N)# where

#chi_i# is the mol fraction of component#i# ,#n_i# is the mols of#i# , and the denominator contains the sum of the mols of everything in the solution.

With just water by itself, we have:

#chi_i = n_(H_2O)/(n_(H_2O)) = 1#

since