How Cold Can a 10% Antifreeze Solution Get Before Freezing?

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Discussion Overview

The discussion revolves around determining the freezing point of a 10% antifreeze solution in water, specifically focusing on the application of colligative properties to find the temperature at which the solution would freeze.

Discussion Character

  • Homework-related, Technical explanation

Main Points Raised

  • One participant states the need to use colligative properties to find the freezing point, referencing the equation ΔTf = i Kf m.
  • Another participant seeks clarification on what exactly they are trying to find, questioning whether it is the new freezing point of the solution.
  • A subsequent reply confirms that the freezing point is indeed what is being sought, reiterating the definition of freezing point.

Areas of Agreement / Disagreement

The discussion shows some agreement on the need to find the freezing point, but there is uncertainty regarding the initial steps to take in solving the problem.

Contextual Notes

Participants have not provided specific values for the van 't Hoff factor (i) or the molality (m), which are necessary for applying the colligative properties equation effectively.

briteliner
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Homework Statement


your car's radiator uses a mixture of antifreeze (C2H6O2) in water to both lower the freezing point and raise the boiling point of the solution. how cold could it get before a 10 mass % solution of antifreeze in water would freeze? (Kf(H2O)=1.86'C/m)


Homework Equations





The Attempt at a Solution

dont know where to start
 
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but what am i looking for?the new freezing point?
 
briteliner said:
but what am i looking for?the new freezing point?

yes, the point at which a solution freezes is defined as it's freezing point. That's what you asked.
 

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