Phenolphthalein, a substance used in acid-base titrations, decomposes in very basic media. Here is a plot of its decay over 400 s.1 What is the average rate of phenolthphalein decomposition between 100 and 200 s? Show your work.

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  1. Phenolphthalein, a substance used in acid-base titrations, decomposes in very basic media. Here is a plot of its decay over 400 s.1

    What is the average rate of phenolthphalein decomposition between 100 and 200 s? Show your work. Both scales can be read to 2 significant figures.

9. Phenolphthalein, a substance used in acid-base titrations, decomposes in very basic media.
Here is a plot of its decay over 400 s.
Work
5x 10-3
4 x 103
3x 10-3
2 x 103
x 10-3
100
200
300
400
Time (sec)
Phenolphthalein concentration (mol/L)
Transcribed Image Text:9. Phenolphthalein, a substance used in acid-base titrations, decomposes in very basic media. Here is a plot of its decay over 400 s. Work 5x 10-3 4 x 103 3x 10-3 2 x 103 x 10-3 100 200 300 400 Time (sec) Phenolphthalein concentration (mol/L)
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