Aspirin Tablet Titration Quiz
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Questions and Answers

What is the balanced chemical equation for the reaction between acetyl salicylic acid (HAS) and sodium hydroxide (NaOH)?

  • $HAS(aq) + 2NaOH(aq) ightarrow H2O(ℓ) + Na2AS(aq)$
  • $2HAS(aq) + 2NaOH(aq) ightarrow 2H2O(ℓ) + 2NaAS(aq)$
  • $HAS(aq) + NaOH(aq) ightarrow H2O(ℓ) + 2NaAS(aq)$
  • $HAS(aq) + NaOH(aq) ightarrow H2O(ℓ) + NaAS(aq)$ (correct)
  • Why is aspirin considered a weak electrolyte?

  • Because it does not conduct electricity at all
  • Because it has a low molecular weight
  • Because it is weakly acidic (correct)
  • Because it is weakly basic
  • What is the purpose of titration in determining the amount of aspirin and inert binder in a tablet?

  • To combine substances using volumetric glassware in a carefully controlled way
  • To determine the pH of the aspirin tablet
  • To calculate the concentration of NaOH solution used in the reaction
  • To measure the exact amounts needed to react aspirin and inert binder (correct)
  • Why is it important to be careful with burets in a titration process?

    <p>Burets are expensive and need to be handled with care</p> Signup and view all the answers

    What problem does the reaction of NaOH with atmospheric carbon dioxide present in the titration process?

    <p>It increases the concentration of NaHCO3 in solution</p> Signup and view all the answers

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