AP®︎ Chemistry: Topic 3.7 Flashcards

Master key terms and definitions for Topic 3.7 of AP Chemistry – Solutions and Mixtures to help you prep for quizzes and the AP exam.

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Term

Homogeneous Mixture / Solution

Definition

A mixture with uniform composition whose macroscopic properties are the same throughout the sample.

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Homogeneous Mixture / Solution
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A mixture with uniform composition whose macroscopic properties are the same throughout the sample.

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Heterogeneous Mixture
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A mixture with nonuniform composition whose macroscopic properties vary from one location to another.

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Solute and Solvent
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The dissolved substance is the solute, and the dissolving medium is the solvent.

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Types of Solutions
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Solutions can be solid, liquid, or gas, as long as composition is uniform throughout.

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Aqueous
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Dissolved in water, written as aq in a chemical equation.

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Solvation and Hydration
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Solvation is solvent attraction around solute particles; hydration is this process specifically in water.

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Volume of Solution vs. Volume of Solvent
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Molarity uses total solution volume, not just the volume of the solvent.

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Dilution
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Lowering concentration by adding solvent while keeping the amount of solute constant.

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Dilution Equation
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Use M1V1 = M2V2 because moles of solute stay constant during dilution.

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Molarity
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Moles of solute per liter of solution, used to calculate amount, volume, or concentration.

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