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QUESTION

Calculate the molar absorption coefficients of p-nitrophenolate at its absorbance maximum and p-nitrophenol at its absorption maximum....

Calculate the molar absorption coefficients of p-nitrophenolate at its absorbance maximum and p-nitrophenol at its absorption maximum.

p-nitrophenolate: wavelength maximum is 401 nm, absorabance at this wavelength is 0.607

p-nitrophenol: wavelength maximum is 312 nm, absorbance at this wavelength is 0.509

Calculate the molar absorption coefficient of p-nitrophenolate and p-nitrophenol at 410nm.

Absorbance for p-nitrophenolate at this wavelength: 0.582

Absorbance for p-nitrophenol at this wavelength: 0.242

The determination of buffer pH using p-nitrophenol is performed photometrically at 410nm; why is this wavelength chosen?

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