Question

Define mole fraction.​

Answer 1

Explanation:

The mole fraction is also called the amount fraction.It is identical to the number fraction, which is defined as the number of molecules of a constituent Ni divided by the total number of all molecules Ntot. The mole fraction is sometimes denoted by the lowercase Greek letter χ (chi) instead of a Roman x. For mixtures of gases, IUPAC recommends the letter y.

The National Institute of Standards and Technology of the United States prefers the term amount-of-substance fraction over mole fraction because it does not contain the name of the unit mole.

Answer 2

Answer:-

Mole fraction is denoted by X

Defination:-

One of the unit of Concentration is mole fraction,and mole fraction is equal to the number of moles of a component divided by the total number of moles of a solution.

Mole fraction of solute

a) Mole fraction of solute is define by number of moles of solute divided by the total numbers of moles of solution.

=> X (solute)

=(moles of solute)/(total moles of solution)

Mole fraction of solvent

b) Mole fraction of solvent is define by number of moles of solvent divided by the total numbers of moles of solution.

=> X (solvent)

=(moles of solvent)/(total moles of solution)

i hope it helps you.