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A 250.0mL sample of 0.4375M aniline, C 6H5NH2 (Kb= 3.8x 10-10) reacted with 2.250L of gaseous hydrocyanic acid, HCN (Ka= 6.2x 10-10) at 25.0C and

A 250.0mL sample of 0.4375M aniline, C

6H5NH2 (Kb= 3.8x 10-10) reacted with 2.250L of gaseous hydrocyanic acid, HCN

(Ka= 6.2x 10-10) at 25.0°C and 8353.0 mmHg. Assuming the volume of the solution did not change, calculate the pH and concentrations of all species present at equilibrium.

(Hint: remember that when you add equations together, you must multiply the equations’ equilibrium constants)

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