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? asked in Science & MathematicsChemistry · 7 years ago

how to find pH with molarity and volume?

93 ml of .30 M aniline solution Kb= 4.3x10^-10 with 100 ml of .13 M nitric acid. Find the pH. Thank you!

1 Answer

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  • ?
    Lv 7
    7 years ago
    Favorite Answer

    establishes a buffer solution

    A^- + HNO3 => HA + NO3-

    A^- eq = 0.0772 M

    HA eq = 0.0674 M

    so

    pH = 4.63 - lg(0.077/0.067) = 4.57

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