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March 25, 2017

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Acid rain has a pH value of 3.0, whereas
normal rain has a pH value of 5.6. Calculate
the ratio of the hydronium ion in acid rain to
that in normal rain.

  • ap chem - ,

    Convert pH 3.0 to (H^+) using pH = -log(H^+).
    Convert pH 5.6 to (H^+).
    Divide 1st by the 2nd to find the ratio acid/normal

  • ap chem - ,

    do I just use the moles of H+?

  • ap chem - ,

    No, the pH needs to be converted to H^+ using the inverse log
    Example:
    ph = -log[H^+] = 3.0
    log [H^+] = -3.0
    [H^+] = inv log (3.0)
    10^(-3.0)

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