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viktelen [127]
3 years ago
9

What is the freezing point of radiator fluid that is 50% antifreeze by mass? Kf for water is 1.86 ∘c/m.

Chemistry
1 answer:
ale4655 [162]3 years ago
6 0

Answer:

  • <u><em>- 1.5 °C</em></u>

Explanation:

The depression of the freezing point is a colligative property which is given by the equation:

  • ΔTf = Kf × m × i

Where:

  • ΔTf is the depression on the freezing point of the pure solute caused by the addition of a nonvolatile solute.
  • m is the molality of the solution.
  • i is the Van't Hoff factor, which accounts for the number of particles into which the solute ionizes. It is 1 for solutes that do not dissociate, which is the case of the radiator fluids.

The calculations step-by-step are in the attached file. Please, open the pdf file with the complete explanation.

Download pdf
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