3.9k views
4 votes
What is the mole fraction of solute in a 3.84 m aqueous solution?

User Misako
by
7.8k points

2 Answers

1 vote

Final answer:

The mole fraction of solute in a 3.84 m aqueous solution depends on the moles of the solute.

Step-by-step explanation:

The mole fraction of solute in a solution represents the ratio of the moles of solute to the total moles of solute and solvent in the solution. To calculate the mole fraction, we need to know the moles of solute and solvent. Based on the given information, we have a 3.84 m aqueous solution. Since it's an aqueous solution, we can assume that water is the solvent.

Therefore, the mole fraction of solute in this solution would depend on the moles of the solute.

User Melaka
by
7.8k points
3 votes
Answer is: mole fraction of solute is 0,065.
molality(aqueous solution) = 3,84 mol/kg.
Molality is a measure of the concentration of a solute in a solution in terms of amount of substance in a specified amount of mass of the solvent.
n(solute) = 3,84 mol.
m(solvent-water) = 1 kg = 1000 g.
n(water) = 1000 g ÷ 18 g/mol = 55,55 mol.
mole fraction = 3,84 mol ÷ 3,84 mol + 55,55 mol.
mole fraction = 0,065 = 6,5%.

User Heather Roberts
by
7.2k points