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Chapter 13: Problem 37

What are colligative properties? What is the meaning of the word "colligative" in this context?

Short Answer

Expert verified
Colligative properties depend on the number ratio of solute particles to solvent molecules in a solution, and not on the type of chemical species present. The term 'colligative' comes from a Latin word that signifies these properties are bound together by the number of particles, regardless of their identity or size.

Step by step solution

01

Define Colligative Properties

Colligative properties are characteristics of solutions that depends on the ratio of the number of solute particles to the total number of solvent molecules in a solution, and not on the nature of the chemical species present.
02

Elucidating The Context Of 'Colligative'

In the context of colligative properties, the term 'colligative' comes from the Latin 'colligatus' meaning 'bound together'. It signifies that these properties are linked together by the number of particles, regardless of their nature or size.

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Most popular questions from this chapter

Define boiling-point elevation and freezing-point depression. Write the equations relating boilingpoint elevation and freezing-point depression to the concentration of the solution. Define all the terms, and give their units.

Using Henry's law and the ideal gas equation to prove the statement that the volume of a gas that dissolves in a given amount of solvent is independent of the pressure of the gas. (Hint: Henry's law can be modified as \(n=k P\), where \(n\) is the number of moles of the gas dissolved in the solvent.)

Calculate the molality of each of the following aqueous solutions: (a) \(2.50 \mathrm{M} \mathrm{NaCl}\) solution (density of solution \(=1.08 \mathrm{~g} / \mathrm{mL}\) ), (b) 48.2 percent by mass KBr solution.

Which of these two aqueous solutions has (a) the higher boiling point, (b) the higher freezing point, and (c) the lower vapor pressure: \(0.35 \mathrm{~m} \mathrm{CaCl}_{2}\) or \(0.90 \mathrm{~m}\) urea? State your reasons.

Give two exceptions to Henry's law.
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