or here is a link to the data: http://imgur.com/KCDXWBN Given that File 001 is t
ID: 952280 • Letter: O
Question
or here is a link to the data: http://imgur.com/KCDXWBN
Given that File 001 is the pH < 4 and File 007 is the pH > 10, and the indicator used was bromocresol purple, please answer this question:
For your indicator, what is the wavelength of maximum absorbance for the pH < 4.00 solution? What is the wavelength of maximum absorbance for the pH > 10.00 solution? What colors correspond to these wavelengths? How do the observed colors of these solutions relate to the colors at their absorbance maxima?
THANK YOU IN ADVANCE!
For your indicator, what is the wavelength of maximum absorbance for the pH < 4.00 solution? What is the wavelength of maximum absorbance for the pH > 10.00 solution? What colors correspond to these wavelengths? How do the observed colors of these solutions relate to the colors at their absorbance maxima?
THANK YOU IN ADVANCE!
Explanation / Answer
Below pH 4 the wavelength of maximum absorption is 580 nm. The absorbed color is Blue and the transmitted color of the solution is Yellow.
Above pH 10 the wavelength of maximum absorption is 435 nm. The absorbed color is Yellow and the transmitted color of the solution is Blue.
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