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11-10-2021
Biology

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How does bromothymol blue act as an indicator for carbon dioxide? What evidence do you have to support your conclusion?

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11-10-2021

Answer:

Carbon dioxide production can be measured by breathing through a straw into a solution of bromothymol blue (BTB).

Explanation:

BTB is an acid indicator; when it reacts with acid it turns from blue to yellow. The more carbon dioxide you breathe into the BTB solution, the faster it will change color to yellow.

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