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Mastering Acid Solution Preparation with HCl
9 Questions
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Mastering Acid Solution Preparation with HCl

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Questions and Answers

What is the reaction equation when HCl is titrated against Na2CO3?

  • $NaHCO3 ightarrow Na2CO3 + H2O + CO2$
  • $Na2CO3 + 2HCl ightarrow 2NaCl + H2O + CO2$ (correct)
  • $Na2CO3 + H2SO4 ightarrow Na2SO4 + H2O + CO2$
  • $H2SO4 + 2NaCl ightarrow Na2SO4 + 2HCl$

    • What is the reaction equation when H2SO4 is titrated against Na2CO3?

  • $NaHCO3 ightarrow Na2CO3 + H2O + CO2$
  • $H2SO4 + 2NaCl ightarrow Na2SO4 + 2HCl$
  • $Na2CO3 + 2HCl ightarrow 2NaCl + H2O + CO2$
  • $Na2CO3 + H2SO4 ightarrow Na2SO4 + H2O + CO2$ (correct)

    • What is the significance of CO2 in the titration process?

  • CO2 is a byproduct of the reaction and has no effect on the solution
  • CO2 neutralizes the solution and introduces an error
  • CO2 makes the solution acidic and introduces an error (correct)
  • CO2 makes the solution basic and introduces an error

    • What is the weight of NaHCO3 used in the assay?

    <p>3g</p> Signup and view all the answers

    What is the volume of water used to mix with NaHCO3 in the assay?

    <p>25mL</p> Signup and view all the answers

    Which substance is used to titrate in the assay of NaHCO3?

    <p>1N H2SO4</p> Signup and view all the answers

    True or false: In the assay of NaHCO3, 3g of NaHCO3 is mixed with 25mL of water.

    <p>True</p> Signup and view all the answers

    True or false: MO ts is added before titrating with 1N H2SO4 in the assay of NaHCO3.

    <p>True</p> Signup and view all the answers

    True or false: Carbonic acid liberated in the reaction affects the pH and other indicators.

    <p>True</p> Signup and view all the answers

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