out of following solution which possesses lowest osmotic pressure,highest boiling point and highest frezzing point 1M KCl,1MNa3PO4 and 1M glucose.
Sodium Phosphate has highest bp
highest fp is glucose, and high osmotic pressure is dependent on number of ions, sodium phosphate
To determine the solution with the lowest osmotic pressure, highest boiling point, and highest freezing point, we need to consider the properties of the solute particles and their concentration.
Osmotic pressure is dependent on the number of solute particles and their concentration. The more solute particles and the higher their concentration, the higher the osmotic pressure.
Boiling point elevation and freezing point depression are both colligative properties, meaning they depend on the number of solute particles and not on their identity. The more solute particles present, the higher the boiling point and the lower the freezing point.
Now, let's examine the number of particles formed per molecule for each of the given compounds:
1M KCl: KCl dissociates into two particles when dissolved in water, one K+ ion, and one Cl- ion.
1M Na3PO4: Na3PO4 dissociates into four particles when dissolved in water, three Na+ ions, and one PO4- ion.
1M glucose: Glucose does not dissociate into ions when dissolved in water, and therefore remains as one particle.
Based on the above information, we can conclude that the 1M Na3PO4 solution has the lowest osmotic pressure, highest boiling point, and the highest freezing point among the given solutions. This is because it generates the highest number of solute particles, leading to these colligative properties being more pronounced in its solution compared to the other solutes.