Assuming complete dissociation of the solute, how many grams of KNO3 must be added to 275 mL of water to produce a solution that freezes at â14.5 âC? The freezing point for pure water is 0.0 âC and Kf is equal to 1.86 âC/m ANSWER=109 g PART B NEEDED: If the 3.90 m solution from Part A boils at 103.45 âC, what is the actual value of the van't Hoff factor, i? The boiling point of pure water is 100.00 âC and Kb is equal to 0.512 âC/m.

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Assuming complete dissociation of the solute, how many grams of KNO3 must be added to 275 mL of water to produce a solution that freezes at â14.5 âC? The freezing point for pure water is 0.0 âC and Kf is equal to 1.86 âC/m ANSWER=109 g PART B NEEDED: If the 3.90 m solution from Part A boils at 103.45 âC, what is the actual value of the van't Hoff factor, i? The boiling point of pure water is 100.00 âC and Kb is equal to 0.512 âC/m.

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