Don't lose your points!
Sign up and save them.
+
Mole Fraction

Mole Fraction

Author: Jose Popoff
Description:

Express the concentration of a solution in terms of mole fraction.

The concentration of a solution can also be expressed in terms of the amount of moles of solute and solvent present.  The concept of mole fraction is a rather simple one that expresses the ratio of either the solute or the solvent to the other components of the solution.

 

Where 

X = mole fraction

n = number of moles

 

For instance, a solution composed of three moles of water and one mole of methanol (CH3OH) contains the following mole fraction of water:

If we were to compute the mole fraction methanol, we would get 

 

Notice that the sum of both mole fractions is equal to 1.

 

Please take a look at the following video examples:

(more)
See More
Fast, Free College Credit

Developing Effective Teams

Let's Ride
*No strings attached. This college course is 100% free and is worth 1 semester credit.

28 Sophia partners guarantee credit transfer.

263 Institutions have accepted or given pre-approval for credit transfer.

* The American Council on Education's College Credit Recommendation Service (ACE Credit®) has evaluated and recommended college credit for 25 of Sophia’s online courses. More than 2,000 colleges and universities consider ACE CREDIT recommendations in determining the applicability to their course and degree programs.

Tutorial

Mole Fraction Example 1

Mole Fraction Example 2