AP Chemistry Flashcards: Separations Of Solutions And Mixtures

What this deck covers

This deck focuses on Separations Of Solutions And Mixtures, giving you a quick way to review the definitions, rules, and examples that matter most for AP Chemistry.

How to use these flashcards

Work through these flashcards in short sessions. Try to answer each prompt before flipping the card, then revisit any cards you miss until the explanation feels automatic.

Flashcard 1: Which technique separates components based on differences in their affinity to a stationary phase?

Answer: Chromatography. Different attraction strengths cause variable retention times.

Flashcard 2: State the method used to remove a solvent from a solution by heating.

Answer: Evaporation. Heat energy converts liquid solvent to vapor phase.

Flashcard 3: Which technique involves evaporating a solvent to obtain a solute?

Answer: Evaporation. Solvent vaporizes leaving behind the dissolved solute.

Flashcard 4: Identify the technique that separates non-volatile solids from liquids.

Answer: Evaporation. Heat converts liquid to vapor, leaving solid behind.

Flashcard 5: What is the principle behind distillation?

Answer: Separation based on boiling points. Components with lower boiling points vaporize first.

Flashcard 6: Which method separates mixtures by spinning them at high speed?

Answer: Centrifugation. Centrifugal force overcomes gravity for faster separation.

Flashcard 7: What technique can separate a mixture of ethanol and water?

Answer: Fractional distillation. Different boiling points enable step-wise separation.

Flashcard 8: What is the separation method based on particle size?

Answer: Filtration. Larger particles cannot pass through the filter medium.

Flashcard 9: What technique separates substances based on mass and density using a centrifuge?

Answer: Centrifugation. Artificial gravity enhances separation of dense particles.

Flashcard 10: What is the role of temperature in distillation?

Answer: Provides energy for phase change. Heat supplies energy needed for liquid-to-vapor transition.

Flashcard 11: What method uses a centrifugal force to separate mixtures?

Answer: Centrifugation. High-speed rotation separates based on density differences.

Flashcard 12: Which technique involves evaporating a solvent to obtain a solute?

Answer: Evaporation. Solvent vaporizes leaving behind the dissolved solute.

Flashcard 13: Identify the separation process for obtaining pure water from seawater.

Answer: Distillation. Water vaporizes leaving dissolved salts behind.

Flashcard 14: What method is used to purify a substance through repeated crystallization?

Answer: Recrystallization. Controlled crystallization removes impurities from desired compound.

Flashcard 15: What is the principle of fractional distillation?

Answer: Separation based on boiling point differences. Multiple vaporization-condensation cycles enhance separation.

Flashcard 16: What is the main criterion for separation in chromatography?

Answer: Differential affinity for the stationary phase. Stronger affinity causes longer retention on stationary phase.

Flashcard 17: What is the purpose of using a separating funnel?

Answer: To separate immiscible liquids. Density differences allow layer formation and separation.

Flashcard 18: Which method is used to concentrate a solution by vaporizing the solvent?

Answer: Evaporation. Removes solvent while retaining dissolved components.

Flashcard 19: What is the function of the stationary phase in chromatography?

Answer: Retards components based on affinity. Holds back components through selective adsorption or absorption.

Flashcard 20: What is the purpose of using a condenser in distillation?

Answer: To cool and condense vapor back to liquid. Heat removal causes vapor to return to liquid state.

Flashcard 21: What is the separation technique for immiscible liquid mixtures?

Answer: Separating funnel. Gravity-based separation of non-mixing liquid phases.

Flashcard 22: Which technique separates components based on differences in their affinity to a stationary phase?

Answer: Chromatography. Different attraction strengths cause variable retention times.

Flashcard 23: State the method used to separate mixtures of liquids with different boiling points.

Answer: Distillation. Components vaporize at different temperatures.

Flashcard 24: What is the separation process for obtaining crystals from a solution?

Answer: Crystallization. Controlled precipitation forms pure crystal structures.

Flashcard 25: Which technique is useful for separating colloidal particles?

Answer: Centrifugation. High-speed rotation overcomes Brownian motion effects.

Flashcard 26: Which technique separates components based on differences in their affinity to a stationary phase?

Answer: Chromatography. Different attraction strengths cause variable retention times.

Flashcard 27: State the method used to remove a solvent from a solution by heating.

Answer: Evaporation. Heat energy converts liquid solvent to vapor phase.

Flashcard 28: In chromatography, what is the role of the mobile phase?

Answer: Carries components through the stationary phase. Transports dissolved components through the separation medium.

Flashcard 29: What technique uses a solvent to separate components based on solubility?

Answer: Extraction. Components dissolve preferentially in different solvents.

Flashcard 30: State the method used to remove a solvent from a solution by heating.

Answer: Evaporation. Heat energy converts liquid solvent to vapor phase.

Flashcard 31: Which separation method utilizes a filter medium?

Answer: Filtration. Porous material blocks particles while allowing liquid passage.

Flashcard 32: What is the principle behind distillation?

Answer: Separation based on boiling points. Components with lower boiling points vaporize first.

Flashcard 33: What process can separate a soluble substance from a solvent?

Answer: Evaporation. Solvent removal concentrates the dissolved substance.

Flashcard 34: Which separation technique involves the change of state from liquid to gas?

Answer: Distillation. Vaporization allows separation based on volatility differences.

Flashcard 35: Which technique separates components based on differences in their affinity to a stationary phase?

Answer: Chromatography. Different attraction strengths cause variable retention times.

Flashcard 36: What is the purpose of using a separating funnel?

Answer: To separate immiscible liquids. Density differences allow layer formation and separation.

Flashcard 37: Which separation technique is based on density differences?

Answer: Centrifugation. Denser components settle faster under centrifugal force.

Flashcard 38: What is the principle governing the separation in extraction?

Answer: Differential solubility in solvents. Components partition between phases based on solubility preferences.

Flashcard 39: Which technique involves evaporating a solvent to obtain a solute?

Answer: Evaporation. Solvent vaporizes leaving behind the dissolved solute.

Flashcard 40: Identify the method used to separate a homogeneous mixture of liquids.

Answer: Distillation. Vaporization and condensation separate miscible liquid components.

Flashcard 41: What technique separates substances based on mass and density using a centrifuge?

Answer: Centrifugation. Artificial gravity enhances separation of dense particles.

Flashcard 42: Identify the process that separates components based on their movement through a medium.

Answer: Chromatography. Components move at different rates through the stationary phase.

Flashcard 43: What is the purpose of using a separating funnel?

Answer: To separate immiscible liquids. Density differences allow layer formation and separation.

Flashcard 44: What is the principle behind distillation?

Answer: Separation based on boiling points. Components with lower boiling points vaporize first.

Flashcard 45: What method uses a centrifugal force to separate mixtures?

Answer: Centrifugation. High-speed rotation separates based on density differences.

Flashcard 46: Identify the process used to separate a solid from a liquid in a heterogeneous mixture.

Answer: Filtration. Uses physical barriers to separate based on particle size.

Flashcard 47: Identify the method that separates components based on vaporization and condensation.

Answer: Distillation. Converts liquid to vapor then back to liquid selectively.

Flashcard 48: Which method can be used to separate a mixture of sand and salt?

Answer: Dissolution followed by filtration. Salt dissolves while sand remains insoluble for filtration.

Flashcard 49: What separation technique uses a porous barrier to separate components?

Answer: Filtration. Filter allows liquid to pass while retaining solid particles.

Flashcard 50: What is the purpose of using a separating funnel?

Answer: To separate immiscible liquids. Density differences allow layer formation and separation.

Flashcard 51: What technique separates substances based on mass and density using a centrifuge?

Answer: Centrifugation. Artificial gravity enhances separation of dense particles.

Flashcard 52: Which separation method utilizes a filter medium?

Answer: Filtration. Porous material blocks particles while allowing liquid passage.

Flashcard 53: State the method used to remove a solvent from a solution by heating.

Answer: Evaporation. Heat energy converts liquid solvent to vapor phase.

Flashcard 54: Which technique involves evaporating a solvent to obtain a solute?

Answer: Evaporation. Solvent vaporizes leaving behind the dissolved solute.

Flashcard 55: What is the principle of chromatography?

Answer: Separation based on different affinities. Different molecular interactions with phases enable separation.

Flashcard 56: What technique separates substances based on mass and density using a centrifuge?

Answer: Centrifugation. Artificial gravity enhances separation of dense particles.

Flashcard 57: Identify the method to separate dyes from ink.

Answer: Paper chromatography. Different dye molecules have varying paper affinities.

Flashcard 58: Identify the process to separate a mixture of oil and water.

Answer: Separating funnel. Immiscible liquids form distinct layers for separation.

Flashcard 59: Which separation technique is used to purify a solid by dissolving impurities?

Answer: Recrystallization. Dissolves solid, removes impurities, then recrystallizes pure product.

Flashcard 60: What separation technique uses a porous barrier to separate components?

Answer: Filtration. Filter allows liquid to pass while retaining solid particles.

Flashcard 61: What is the principle behind distillation?

Answer: Separation based on boiling points. Components with lower boiling points vaporize first.

Flashcard 62: What technique can separate a mixture of ethanol and water?

Answer: Fractional distillation. Different boiling points enable step-wise separation.

Flashcard 63: What method uses a centrifugal force to separate mixtures?

Answer: Centrifugation. High-speed rotation separates based on density differences.

Flashcard 64: What method uses a centrifugal force to separate mixtures?

Answer: Centrifugation. High-speed rotation separates based on density differences.