All flashcards
Flashcard 1: State the method used to remove a solvent from a solution by heating.
Answer: Evaporation. Heat energy converts liquid solvent to vapor phase.
Flashcard 2: What method uses a centrifugal force to separate mixtures?
Answer: Centrifugation. High-speed rotation separates based on density differences.
Flashcard 3: What technique separates substances based on mass and density using a centrifuge?
Answer: Centrifugation. Artificial gravity enhances separation of dense particles.
Flashcard 4: Which technique separates components based on differences in their affinity to a stationary phase?
Answer: Chromatography. Different attraction strengths cause variable retention times.
Flashcard 5: Which technique involves evaporating a solvent to obtain a solute?
Answer: Evaporation. Solvent vaporizes leaving behind the dissolved solute.
Flashcard 6: What is the purpose of using a separating funnel?
Answer: To separate immiscible liquids. Density differences allow layer formation and separation.
Flashcard 7: What is the principle behind distillation?
Answer: Separation based on boiling points. Components with lower boiling points vaporize first.
Flashcard 8: What technique separates substances based on mass and density using a centrifuge?
Answer: Centrifugation. Artificial gravity enhances separation of dense particles.
Flashcard 9: Which technique separates components based on differences in their affinity to a stationary phase?
Answer: Chromatography. Different attraction strengths cause variable retention times.
Flashcard 10: Which technique involves evaporating a solvent to obtain a solute?
Answer: Evaporation. Solvent vaporizes leaving behind the dissolved solute.
Flashcard 11: What is the purpose of using a separating funnel?
Answer: To separate immiscible liquids. Density differences allow layer formation and separation.
Flashcard 12: What is the principle behind distillation?
Answer: Separation based on boiling points. Components with lower boiling points vaporize first.
Flashcard 13: State the method used to remove a solvent from a solution by heating.
Answer: Evaporation. Heat energy converts liquid solvent to vapor phase.
Flashcard 14: What method uses a centrifugal force to separate mixtures?
Answer: Centrifugation. High-speed rotation separates based on density differences.
Flashcard 15: Which technique separates components based on differences in their affinity to a stationary phase?
Answer: Chromatography. Different attraction strengths cause variable retention times.
Flashcard 16: Which technique involves evaporating a solvent to obtain a solute?
Answer: Evaporation. Solvent vaporizes leaving behind the dissolved solute.
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: What is the principle behind distillation?
Answer: Separation based on boiling points. Components with lower boiling points vaporize first.
Flashcard 19: State the method used to remove a solvent from a solution by heating.
Answer: Evaporation. Heat energy converts liquid solvent to vapor phase.
Flashcard 20: What method uses a centrifugal force to separate mixtures?
Answer: Centrifugation. High-speed rotation separates based on density differences.
Flashcard 21: What technique separates substances based on mass and density using a centrifuge?
Answer: Centrifugation. Artificial gravity enhances separation of dense particles.
Flashcard 22: Which separation technique is based on density differences?
Answer: Centrifugation. Denser components settle faster under centrifugal force.
Flashcard 23: 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 24: Which separation method utilizes a filter medium?
Answer: Filtration. Porous material blocks particles while allowing liquid passage.
Flashcard 25: Identify the technique that separates non-volatile solids from liquids.
Answer: Evaporation. Heat converts liquid to vapor, leaving solid behind.
Flashcard 26: Which separation technique is used to purify a solid by dissolving impurities?
Answer: Recrystallization. Dissolves solid, removes impurities, then recrystallizes pure product.
Flashcard 27: What is the separation method based on particle size?
Answer: Filtration. Larger particles cannot pass through the filter medium.
Flashcard 28: 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 29: 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 30: What is the role of temperature in distillation?
Answer: Provides energy for phase change. Heat supplies energy needed for liquid-to-vapor transition.