Which of the following is/are correct for a aqueous solution of a solute? — Mole Concept and Some Basic Concepts of Chemistry Chemistry Question

💡 Solution & Explanation

Definition: $m = \text{moles solute} / \text{mass solvent (kg)}$. <br>$\chi = 0.5 / (0.5 + 1000/18) = 0.5 / 56.05 \approx 0.0089$. <br>Molality is mass-based, so it does not change with temperature.