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    Calculate [H+], [HA] and [H2A] for a weak dibasic acid.

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    Calculate [H+], [HA] and [H2A] for a 0.1M solution of the weak dibasic acid H2A.

    Given: H2A=H+ + HA- Ka1=2.0 X 10-5
    HA- = H+ + HA- Ka2=1.00 X 10-12

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    https://brainmass.com/chemistry/acid-and-base-organic-chemistry/calculate-weak-dibasic-acid-18571

    Solution Preview

    For this question, one must be proficient with the general formula used to do a simple weak acid.

    Ka = x^2/C-x

    This come from the equilibrium equation,

    H2A --> H+ + HA-
    Initial C 0 0
    Change -x x x
    -----------------------------
    Equil ...

    Solution Summary

    For this question, one must be proficient with the general formula used to do a simple weak acid Ka = x^2/C-x.

    $2.19

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