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Each component in a mixture contributes a fraction to the total number of moles in the mixture. this fraction is called the mole fraction.

What is mole fraction?

  • The mole fraction is likewise called the amount fraction. It is same to the variety fraction, which is described because the number of molecules of a constituent Ni divided by way of the total number of all molecules Ntot.
  • The mole fraction is every now and then denoted through the lowercase Greek letter χ (chi) in preference to a Roman x. For combos of gases, IUPAC recommends the letter y.
  • The mole fraction is one manner of expressing the composition of a mixture with a dimensionless quantity; mass fraction (percent by using weight, wt%) and extent fraction (percentage by quantity, vol%) are others values of it.

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