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When 5.00 mL of 0.1032 M NaOH were added to 0.1123 g of aniline (FM = 89.093) in 100.00 mL of 0.10 M KNO3, the measured pH was 9.57. Use activity coefficents to fin pK2 for aniline. Consider the ionic strength of the solution to be 0.10 M and consider each ionic form of aniline to have an activity coefficient of 0.77.

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