What color range and at what pH levels will you observe with bromothymol blue indicator?

Approximately what wavelength will the acid form of the indicator maximally absorb? Explain.

Approximately what wavelength will the base form of the indicator maximally absorb? Explain.

Define the term isobestic point. Explain why the isobestic point would be a poor choice of wavelength for determining pKa? Provide at least one citation for this question.

pKa has been shown to be temperature dependent. Use Equation 26.4 to determine the pKa of an indicator at 273K if the pKa at 298K is 7.10 and the Enthalpy of ionization is 770 J/mol. Show all work.