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

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SUMMARY

The discussion centers on the use of acid or base in titration apparatus, specifically in burettes and pipettes, for AP Chemistry. Participants agree that the identity of the titrant (acid or base) does not fundamentally affect the calculation of the unknown concentration, as long as the equation N1V1 = N2V2 is applied correctly. However, considerations such as the potential damage to burettes from strong bases and the choice of indicator for optimal color change detection are important factors. Convenience in titration setup is also highlighted when using common acids or bases across multiple titrations.

PREREQUISITES
  • Understanding of titration principles and the equation N1V1 = N2V2
  • Knowledge of acid-base chemistry and properties of strong acids and bases
  • Familiarity with laboratory equipment, specifically burettes and pipettes
  • Awareness of indicators used in titrations and their color change characteristics
NEXT STEPS
  • Research the effects of different indicators on titration results
  • Study the properties and handling precautions for strong acids and bases
  • Learn about the maintenance and care of laboratory glassware, particularly burettes
  • Explore advanced titration techniques and their applications in analytical chemistry
USEFUL FOR

This discussion is beneficial for AP Chemistry students, chemistry educators, and laboratory technicians involved in titration experiments and acid-base analysis.

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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