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March 29, 2017

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For propanoic acid (HC3H5O2, Ka = 1.3 10-5), determine the concentration of all species present, the pH, and the percent dissociation of a 0.170 M solution.

PLEASE HELP ME DO THIS PROBLEM.

  • CHEMISTRY - ,

    I don't like to type all that stuff, so propanoic acid I will call HP.
    HP ==> H^+ + P^-
    Ka = (H^+)(P^-)/(HP)
    H^+ = x
    P^- = x
    HP = 0.170-x
    Substitute into Ka and solve for x, then convert to pH.

    % diss = [(H^+)/0.170]*100 = ??
    Post your work if you get stuck.

  • CHEMISTRY - ,

    For propanoic acid (HC3H5O2, Ka = 1.3 10-5), determine the concentration of all species present, the pH, and the percent dissociation of a 0.170 M solution.
    [HC3H5O2]:

    [C3H5O2‾]:

    [H+] :

    [OH ‾]:

    pH :


    i need help on how to find the concentration of these also in Moles.

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