Mastering the Art of Pure Sodium Chloride Preparation
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Questions and Answers

Which reagent is used to precipitate sulfate ions in the preparation of pure sodium chloride?

  • Barium chloride TS (correct)
  • Alcohol
  • Sodium carbonate
  • Hydrochloric acid

    • What is the purpose of treating the solution with 10% sodium carbonate?

  • To remove excess barium ions
  • To remove excess calcium ions (correct)
  • To remove excess sodium carbonate
  • To remove excess magnesium ions

    • What is the next step after filtering the clear solution?

  • Add barium chloride TS
  • Add alcohol
  • Add 4 ml of 10% sodium carbonate (correct)
  • Add hydrochloric acid

    • What is the purpose of adding hydrochloric acid to the solution?

    <p>To neutralize the solution</p> Signup and view all the answers

    What is the purpose of digesting the solution on a water bath?

    <p>To precipitate sulfate ions</p> Signup and view all the answers

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