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Biology, 13.05.2021 23:10 99keevintaylor012

[1] (b) The hydrogencarbonate indicator solution changes colour when the pH changes. At
pH 8.4 it is red, at pH 7.6 it is yellow and at pH 9 it is purple.
Predict the colour of the hydrogencarbonate indicator solution in the bottle nearest the
lamp at the end of the investigation. Explain your answer.
colour prediction
explanation​

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[1] (b) The hydrogencarbonate indicator solution changes colour when the pH changes. At
pH 8.4...

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