Exp. 07 – Determining an Unknown Concentration

Why are we doing this experiment?

  • Titrations are frequently used to accurately and precisely determine the concentration of an unknown solution.
  • Titration calculations involve the use of stoichiometry.

How do I prepare for lab?

  • Additional information
    • OpenStaxx: Section 4.3, 4.5, 14.7

What will I do in lab?

What will I do after lab?

  • Calculations
  • Post-lab Checklist (i.e. things you should be able to do for the lab practical)
    • Calculate the average and standard deviation of the molarity.
    • Understand the properties and purpose of a primary standard.
    • Determine the concentration of an unknown acid.
    • Complete titration calculations (including those who do not have a 1:1 mole ratio).
      • You will not see a 1:1 molar ratio on your exam.
    • Read a buret accurately.
    • Understand the concept of equivalence point.
    • Obtain the equivalence point from the graph of the data and/or the second derivative.

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