Worksheet: Separating Mixtures

In this worksheet, we will practice identifying separatory apparatus and describing suitable separation and purification methods for given experiments.

Q1:

Which of the following methods is the most appropriate for recovering a solute from a solution containing other, more soluble solutes?

  • ACrystallization
  • BCentrifugation
  • CFiltration
  • DEvaporation
  • EDistillation

Q2:

Which of the following methods is the most appropriate for separating a solid from a liquid?

  • ACrystallization
  • BEvaporation
  • CDistillation
  • DFiltration
  • ECentrifugation

Q3:

Which technique could be used to obtain pure liquid acetaldehyde (boiling point 20C) from a mixture of acetaldehyde and ethanol (boiling point 78C)?

  • ADistillation
  • BEvaporation
  • CCentrifugation
  • DFiltration
  • ECrystallization

Q4:

Which of the following methods is the most appropriate for separating a liquid with a low boiling point from a mixture of liquids?

  • AFiltration
  • BCrystallization
  • CEvaporation
  • DCentrifugation
  • EDistillation

Q5:

Which technique could be used to obtain pure solid copper sulfate from a solution of copper sulfate and sodium chloride in water?

  • AEvaporation
  • BCrystallization
  • CDistillation
  • DCentrifugation
  • EFiltration

Q6:

A student dissolves some sodium chloride in water and wants to recover it. Which technique should they use?

  • ACrystallization
  • BFiltration
  • CCentrifugation
  • DEvaporation
  • EDistillation

Q7:

A student must separate a sample of sand from a water suspension. Which technique should the student use?

  • AFiltration
  • BDistillation
  • CCrystallization
  • DEvaporation
  • ECentrifugation

Q8:

Which of the following methods is most appropriate for separating a solute from a simple mixture of solvent and solute?

  • ACentrifugation
  • BFiltration
  • CCrystallization
  • DEvaporation
  • EDistillation

Q9:

Which item of glassware is illustrated below?

  • AVolumetric flask
  • BErlenmeyer flask
  • CBüchner flask
  • DDistillation flask
  • ERound-bottom flask

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