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Solubilities of Gases in Water Quiz

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Questions and Answers

What does Raoult's Law describe?

The freezing point depression of a solution

The effect of temperature on boiling point elevation

The relationship between solvent concentration and vapor pressure in a solution (correct)

The process of solvent escaping to the vapor phase

In ideal solutions, what is assumed about substances regarding Raoult's Law?

Each substance will follow Raoult's Law exactly (correct)

Only the solute will follow Raoult's Law

They will not follow Raoult's Law

The boiling point of the solvent will decrease

What is the van't Hoff factor, i, related to when calculating boiling-point elevation and freezing-point depression?

Boiling point and freezing point constants

Solvent concentration

Molality

Number of particles present on dissolution (correct)

How does the presence of a nonvolatile solute affect the vapor pressure of a solvent according to Raoult's Law?

Decreases vapor pressure Signup and view all the answers

What happens to the freezing point of a solution compared to the freezing point of the pure solvent?

It decreases Signup and view all the answers

Which property requires higher temperatures to reach atmospheric pressure in solutions?

Boiling point Signup and view all the answers

What is the relationship between the change in temperature and molality in boiling-point elevation and freezing-point depression?

Direct proportionality Signup and view all the answers

What does Raoult’s Law say about the vapor pressure of a volatile solvent over a solution containing a nonvolatile solute?

It decreases proportionally with solvent concentration Signup and view all the answers

What happens to the boiling point in solutions compared to the pure solvent?

Boiling point increases Signup and view all the answers

How does a phase diagram for a solution confirm freezing point and boiling point changes?

By confirming lowered freezing points and raised boiling points Signup and view all the answers