The anthocyanin in hydrangeas can be isolated and used as an environmentally friendly pH indicator for titrations. At the end of a titration reaction of a strong acid with a strong base, you have a neutral solution. Which of the following lab experiments would work to test your color prediction above? ( can select more than one answer)Include anthrocyanins in a titration, as they will always change between pink and blue at the equivalence point.Titrating isolated anthrocyanins with base.Adding isolated anthrocyanins to neutral water and checking the pH.Include known concentrations of isolated anthrocyanins in a strong acid/strong base titration.

Anthocyanins are water soluble flavonoid pigments that are found in many plants. In lab if we see…

Answered: of a titration reaction of a

Principles of Modern Chemistry

8th Edition

ISBN:9781305079113

Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Chapter15: Acid–base Equilibria

Section: Chapter Questions

Problem 51P

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The anthocyanin in hydrangeas can be isolated and used as an environmentally friendly pH indicator for titrations. At the end of a titration reaction of a strong acid with a strong base, you have a neutral solution.

Which of the following lab experiments would work to test your color prediction above? ( can select more than one answer)

Include anthrocyanins in a titration, as they will always change between pink and blue at the equivalence point.
Titrating isolated anthrocyanins with base.
Adding isolated anthrocyanins to neutral water and checking the pH.
Include known concentrations of isolated anthrocyanins in a strong acid/strong base titration.

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