Answer
You have to consider effective molality which takes into account how many particles of a solute dissociates in solution. Calcium nitrate dissociates into 3 particles , so its effective molality is 3m. Sodium nitirate dissociates into 2 particles, so its effective molality is 2m.
Work Step by Step
You have to consider effective molality which takes into account how many particles of a solute dissociates in solution. Calcium nitrate dissociates into 3 particles, so its effective molality is 3m. Sodium nitirate dissociates into 2 particles, so its effective molality is 2m.