Titration Apparatus: Acid/Base, Necessity of Known/Unknown

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Discussion Overview

The discussion revolves around the use of acids and bases in titration apparatus, specifically whether it matters which is used in the burette or pipette, and the implications of having known or unknown solutions in these containers. The scope includes conceptual understanding and practical considerations in titration techniques.

Discussion Character

  • Exploratory
  • Conceptual clarification
  • Debate/contested

Main Points Raised

  • One participant questions whether it matters if an acid or base is used in the burette or pipette, and if the known or unknown must be in a specific container.
  • Another participant suggests that as long as the percentage uncertainties in volumes are reasonably similar, the choice should not matter.
  • A different viewpoint mentions that strong bases can damage the burette if left in for extended periods and that the choice of indicator may affect the visibility of the color change during titration.
  • Some participants emphasize the importance of convenience when performing multiple titrations with a common acid or base.

Areas of Agreement / Disagreement

Participants express differing opinions on the necessity of specific arrangements for known and unknown solutions in titration. The discussion remains unresolved with multiple competing views presented.

Contextual Notes

There are considerations regarding the effects of strong bases on equipment and the role of indicators, but these aspects are not fully explored or agreed upon.

erisedk
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Does it matter if I use acid or base in the burette or pipette? Is it necessary for the known or unknown to be in a specific thing? If yes, why?
 
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This is a discussion question for a prelab test? What are your ideas on the concept?
 
No, I was just wondering while watching various titrations on Youtube. I'm self studying for AP Chem.
According to me, it shouldn't because in the equation N1V1 = N2V2, all I need are 3 knowns to determine the one unknown. And I will get the volume of both the solutions regardless of whether I take the analyte or titrant in either.
 
And, as long as the percentage uncertainties in volumes are reasonably similar, you've answered your question. Yes?
 
Yeah, thanks :)
 
Some strong bases can damage the burette if you are leaving them in for extended periods. Also your choice of indicator can be a factor as the color change can be more easily detected one way or the other. If you are doing two or more titrations with an acid or base in common the choice of what will be in the burette will be one of convenience.
 

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