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Analytical Chemistry

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Determine the pH of a solution that is generated when 2.623 g Na3PO4 is added to a 100mL of 0.0800 M H3PO4.

  • Analytical Chemistry -

    I would use
    k1k2k3 = (H^+)^3(PO4^3-)/(H3PO4)
    Plug in for PO4^3- and H3PO4 and solve for (H^+) then convert to pH.

  • Analytical Chemistry -

    I use the Given concentrations? and solve for [H3O]?

  • Analytical Chemistry -

    right. mols Na3PO4 = grams/molar mass and M = mols/L solution.
    H3PO4 is given.
    Solve for H^+ and convert to pH.

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