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If 20ml of glacial acetic acid (pure HC2H3O2) is diluted to 1.5L with water, what is the pH of the resulting solution. The density of glacial acetic acid is 1.08g/ml

  • Chemistry -

    Call acetic acid HAc.
    Calculate M concd HAc.
    1.08 g/mL x 1000 mL x (1 mol/molar mass HAc) = ??M HAc.

    For the diluted solution,
    M HAc x (20 mL/1,500 mL) = ?? M

    HAc ==> H^+ + Ac^-
    Ka = (H^+)Ac^-)/(HAc)
    Set up an ICE chart, substitute into the Ka expression, and solve for H^+, then convert to pH.

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