A buffered solution containing dissolved aniline, C6H5NH2, and aniline hydrochloride, C6H5NH3Cl, has a pH of 5.61....

A buffered solution containing dissolved aniline, C6H5NH2, and aniline hydrochloride, C6H5NH3Cl, has a pH of 5.61.

a) Determine the concentration of C6H5NH3 in the solution if the concentration of C6H5NH2 is 0.200 M. The pKb of aniline is 9.13.

b) Calculate the change in pH of the solution, ΔpH, if 0.387 g NaOH is added to the buffer for a final volume of 1.75 L. Assume that any contribution of NaOH to the volume is negligible.

Expert Solution

queen_honey_blossom answered 3 years ago

A buffered solution containing dissolved aniline, C6H5NH2, and aniline hydrochloride, C6H5NH3Cl, has a pH of 5.47....

A buffered solution containing dissolved aniline, C6H5NH2, and aniline hydrochloride, C6H5NH3Cl, has a pH of 5.47. a) Determine the concentration of C6H5NH3+ in the solution if the concentration of C6H5NH2 is 0.200 M. The pKb of aniline is 9.13. b) Calculate the change in pH of the solution, delta pH , if 0.393 g NaOH is added to the buffer for a final volume of 1.55 L. Assume that any contribution of NaOH to the volume is negligible.

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