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Sampling
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Sampling

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Questions and Answers

Which type of sampling eliminates questions of bias in selection?

  • Random (correct)
  • Stratified
  • Systematic
  • Composite

    • What is used to separate aqueous and nonaqueous liquids into two samples?

  • Pipet
  • Beaker
  • Separatory funnel (correct)
  • Rotary evaporator

    • Which method is commonly used to separate mixtures of liquids and solids prior to analysis?

  • Filtering
  • Decanting
  • Centrifuging
  • All of the above (correct)

    • What is a common pre-treatment method for solid samples prior to analysis?

    <p>All of the above</p> Signup and view all the answers

    Which technique is often considered expensive and the last resort for the decomposition and dissolution of solids during sample preparation?

    <p>Fusion technique</p> Signup and view all the answers

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