Question 17 For the acid-base indicator bromothymol blue, the protonated form, HBB, is yellow and the deprotonated form, BB, is blue. When both forms are present the indicator has a green color, the shade of green depends on the ratio of HBB:BB. Use the information below to calculate the concentration (10-6 M) of HBB for a green solution of bromothymol blue. Wavelength 1.0 x 1.0 x 10-5 M 10-5 HBB M BB 0.1910 0.02340.4680 453 nm 616 nm 0.566 Unknown Mixture 0.006250.32110.3269

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Question 17
For the acid-base indicator bromothymol blue, the protonated form, HBB, is
yellow and the deprotonated form, BB, is blue. When both forms are present
the indicator has a green color, the shade of green depends on the ratio of
HBB:BB. Use the information below to calculate the concentration (10-6 M) of
HBB for a green solution of bromothymol blue.
Wavelength 1.0 x 1.0x Unknown
10-5 M 10-5 Mixture
HBB M BB
0.1910 0.02340.4680
453 nm
616 nm
0.566
0.006250.32110.3269
Transcribed Image Text:Question 17 For the acid-base indicator bromothymol blue, the protonated form, HBB, is yellow and the deprotonated form, BB, is blue. When both forms are present the indicator has a green color, the shade of green depends on the ratio of HBB:BB. Use the information below to calculate the concentration (10-6 M) of HBB for a green solution of bromothymol blue. Wavelength 1.0 x 1.0x Unknown 10-5 M 10-5 Mixture HBB M BB 0.1910 0.02340.4680 453 nm 616 nm 0.566 0.006250.32110.3269
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