Presuming complete dissociation of the solute

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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 -14.5 C? The freezing point for pure water is 0.0 C and Kf is equal to 1.86 C/m.

my answer of 217g was wrong, and I got the message to use the vont hoff factor.

Reference no: EM13179955

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Presuming complete dissociation of the solute : 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 -14.5 C?

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