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Calculate the pH of a 0.10 M NaHX salt solution. Ka (H2X) = 2.1 x 10-2 Ka (HX-) = 7.3 x 10-8



Calculate the pH of a 0.10 M NaHX salt solution. Ka (H2X) = 9 x 10-5 Ka (HX-) = 5.3 x 10-11

  • chemistry - ,

    #1 I believe is just the pH of the salt acting as an acid.
    ..............HX^- ==> H^+ + X^2-
    initial.......0.1......0......0
    change........-x.......x.......x
    equil.......0.1-x......x.......x

    Set up k1 and solve for x. You will not be able to solve without using a quadratic equation.

    4). This one looks amazingly like NaHCO3 for which (H^+) = sqrt(k1k2)

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