Titration curves

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Intros
Lessons
  1. Using titration data in graphs
  2. How do graphs explain titration?
  3. Different titration curves: strong acid/strong base.
  4. Different titration curves: weak acid/strong base.
  5. Different titration curves: weak base/strong acid.
  6. Which indicator do we use for this titration?
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Examples
Lessons
  1. Explain the use of suitable indicators for combinations of strong and weak acids and bases.
    Below is a table with information on three common pH indicators used in titrations.

    Indicator

    Acid (protonated) color

    Base (deprotonated) color

    pH range

    Phenolphthalein

    Colorless

    Pink

    8.2-12.0

    Bromothymol blue

    Yellow

    Blue

    6.0-7.6

    Alizarin yellow

    Yellow

    Red

    10.0-12.0

    1. If phenolphthalein is used, what type of acid and what type of base is likely being used in the titration experiment?
    2. Sketch a titration curve for a titration of this type, showing the range where the equivalence point is expected.