Question

If n represents the number of moles of a solute and N represents the number of moles of a solvent, then the mole fraction of solvent is given by *

n+N/n

n/n+N

N/n+N

n+N​

Answer 1

Answer:-

N/n + N

Explanation:-

Here :-

• Moles of solute = n

• Moles of solvent = N

Now, we know that:-

Mole fraction of a solvent :-

= Mole of solvent/Total mole in solution

By substituting the given values in the abve fomula, we get :-

Mole fraction of solvent :-

= N/n+N

Some Extra Information :-

Mole fraction (X) :- It is the ratio of number of moles of a particular component to the total number of moles in the solution. If a substance 'a' dissolves in substance 'e' and their number of moles are nₐ and nₑ respectively, then mole fractions of 'a' and 'e' are given as :-

=> Xₐ = nₐ /nₐ + nₑ

=> Xₑ = nₑ /nₐ + nₑ

The total mole fraction i.e. Xₐ + Xₑ = 1.

Answer 2

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N/n+N