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Calculate relative conc of aniline(pKb=9.42) and anilinium chloride required to prepare buffer of pH 5.00.?

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Calculate relative conc of aniline(pKb=9.42) and anilinium chloride required to prepare buffer of pH 5.00.?

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  1. pOH = 14 - 5.00 = 9.00

    9.00 = 9.42 + log [anilinium]/ [aniline]

    10^-0.42 =0.380 = [anilinium]/[aniline]

    this means that if the concentration of aniline is 1.0 M => the concentration of anilinium chloride is 0.380 M

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