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AP Chemistry

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Calculate the pH of a 75.0 ml solution containing 0.85 M lactic acid after the addition of 0.0225 moles NaL (assume a negligible volume change.)

  • AP Chemistry -

    Use the Henderson-Hasselbalch equation.
    Lactic acid is the acid.
    sodium lactate is the base.

  • AP Chemistry -

    DrBob--How do I determine the Pka value?

  • AP Chemistry--to DrBob -

    How do I figure out the Pka value?

  • AP Chemistry -

    Watch.
    pH = -log(H^+)
    pOH = -log(OH^-)
    pKa = -log Ka
    pKb = -log Kb
    Do you get it? p means -log.

  • AP Chemistry--to DrBob -

    Thanks Dr. Bob!

  • AP Chemistry -

    kkm

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