Answer to Question #188252 in General Chemistry for Ivan

Question #188252

1. State the effect that dissolving a solute has on each of the following physical properties of a solvent.


a. Boiling Point


b. Freezing Point




2. Explain why the colligative properties of a solvent are affected more by the dissolving of an electrolyte compared to an equal amount of a nonelectrolyte.




3. Are the values of Kf and Kb dependent on the identity of the solvent, the solute, or both? Explain.


1
Expert's answer
2021-05-03T07:24:41-0400

1.a)The solute raises the boiling point by an amount that depends on the number of particles it contributes go the solution.

b)The presence of a solute lowers the freezing point of any solvent; this effect is called freezing-point depression.


2.Nonelectrolyte solutions are those in which the solute does not dissociate into ions when dissolved; sugar does not dissociate, for example. The number of moles of dissolved particles is greater for electrolyte solutions, so there will be a greater impact on colligative properties.


3.The value of Kb or Kf depends only on the type of solvent & not solute dissolved in it.


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Comments

Bels
02.07.21, 16:36

Thank youuuu!

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