Calculations You Should Be Able to Do



The definition of mole fraction:

"The mole fraction of a component within a system is the ratio of the number of moles of that component to the total number of moles of all components within the system."

leads to the following equation:

Mole Fraction of Component A =                  Number of Moles of A                
Total Number of Moles of All Components

You need to be able to calculate all three parts of this equation if you know two of the others ie you need to be able to calculate:

  1. the mole fraction of a component
  2. the number of moles of a component
  3. how many moles there are in total