3/2/2017 11:55 PM A 2.5/5 2/27/2017 09:23 PM Gradebook Print Calculator Periodic

Question

3/2/2017 11:55 PM A 2.5/5 2/27/2017 09:23 PM Gradebook Print Calculator Periodic Table Question 3 of 4 ncorrect ncorrect Map A Sapling Learning A buffered solution containing dissolved a C6H5NH2, and aniline hydrochloride, C6H5NH3Cl, has a pH of 5.50. a) Determine the concentration of C6H5 n the solution if the concentration of C6H5NH2 is 0.245 M. The pKb of aniline is 9.13. Number C He NH. 00005733 M b) Calculate the change in pH of the solution, ADH, if 0.391 g NaOH is added to the buffer for a final volume of 1.50 L. Assume that any contribution of NaoH to the volume is negligible Number ApH 2.048 There is a hint available! ing on the divider bar again to hide the hint. Close A Previous ® Give Up & View solution Check Answer Next Ext Hint

Explanation / Answer

Substituting in 1, we get

9.13 x 0.245 / 0.000203468 = [C6H5NH3+]

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