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2 cards from this section. Quick, good the night before a test.
Define Raoult's Law in your own words.
Think about how adding solute affects the escaping tendency of solvent molecules.
What is an ideal solution?
Consider what makes the interactions among molecules in an ideal solution uniform.
What does Raoult's Law state about vapor pressure?
Remember how solute concentration affects vapor pressure.
Is Raoult's Law applicable to all solutions?
Think about solutions with strong interactions.
A solution of glucose has a mass percentage of 5%. Calculate the vapor pressure decrease when 10 g of glucose is added to 100 g of water with a vapor pressure of 23.8 mm Hg.
Start with the definitions and work through molar conversion.
If the vapor pressure of acetone is 80 mm Hg and that of chloroform is 150 mm Hg, what is the expected vapor pressure of a solution made by mixing equal moles of both?
Think about how to balance the contributions of both solvents.
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