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Acid and Base indicator made from turmeric (goldenrod paper) - (Halloween chemistry)

1:50Practical demonstrationIntroductory

This demonstration shows Acid and Base indicator made from turmeric (goldenrod paper) - (Halloween ) and connects the observations to Acid-base theories and Indicators, neutralisation & titrations. It helps students select a suitable acid-base indicator and identify Brønsted–Lowry acids, bases and conjugate pairs.

Acid-base theoriesIndicators, neutralisation & titrationsAcid dissociation & KaBaseAcid-base indicatorAcidBrønsted–Lowry

Learning goals

What you should be able to do

  • select a suitable acid-base indicator
  • identify Brønsted–Lowry acids, bases and conjugate pairs
  • solve acid-base titration calculations
  • write and use a Kₐ expression

Curriculum links

VCE Chemistry connections

  • Unit 2, Area of Study 1Acid-base (proton transfer) reactions
  • Unit 2, Area of Study 2Analysis for acids and bases