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QUESTION
A solution of p-nitrophenol at pH 8.75 was found to have an A400 of .585. What is the total concentration (in M) of p-nitrophenol (ionized plus
A solution of p-nitrophenol at pH 8.75 was found to have an A400 of .585. What is the total concentration (in µM) of p-nitrophenol (ionized plus unionized) in the solution? The molar extinction coefficient of p-nitrophenol is 18,500M-1cm-1 and the pKa is 7.
