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The reaction of the weak base aniline, C6H5NH2, with the strong acid hydrochloric acid yields aniline...

The reaction of the weak base aniline, C6H5NH2, with the strong acid hydrochloric acid yields aniline hydrochloride, C6H5NH3Cl. What is the hydronium ion concentration of a 0.163 M solution of aniline hydrochloride at 25∘C given that the value of Kb for aniline is 4.300×10−10

  • Report your answer in scientific notation.
  • Your answer should have three significant figures.
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Answer #1

Solution:

Aniline hydrochloride is a salt of weak base and strong acid.

Therefore, ka = kw/kb

The calculated value of [H3O+] = 1.949 x 10^-3 M

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