Question

an aqueous solution is labeled as 0.25 m NaCl. what is the mole fraction of the solute in this solution. show all calculations leading to the answer

Answer 1

solute is what is being dissolved.
In this case, you have NaCl that is being dissolved in aqueous solution into its respective elemental ions.

To find the mole fraction, you simple do: \(\sf x = \frac{X_{NaCl}}{X_{NaCl} + X_{Na/Cl}}\)
You will see that you should have a 1:1 ratio here.