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Math Help - Please help test tom. :( logarithmic equation

  1. #1
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    Please help test tom. :( logarithmic equation

    Please help me figure out this problem, I just want to say thank u all for helping me with the others problems, I would be no where without you all, thank u thank u !

    In chemistry, pH is based on a
    logarithmic equation as pH = -log[H+]
    where H+ is the number of positive
    hydrogen ions. My horse is not
    feeling well and I note that his positive
    ion concentration in his urine is
    6.35 * 10 ^-6. Calculate the pH number
    and describe whether it is acidic or basic. Note: 7 is neutral, above 7 is basic
    and below 7 is an acid.
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  2. #2
    Rhymes with Orange Chris L T521's Avatar
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    Quote Originally Posted by AFan View Post
    Please help me figure out this problem, I just want to say thank u all for helping me with the others problems, I would be no where without you all, thank u thank u !

    In chemistry, pH is based on a
    logarithmic equation as pH = -log[H+]
    where H+ is the number of positive
    hydrogen ions. My horse is not
    feeling well and I note that his positive
    ion concentration in his urine is
    6.35 * 10 ^-6. Calculate the pH number
    and describe whether it is acidic or basic. Note: 7 is neutral, above 7 is basic
    and below 7 is an acid.
    Again, this is another "plug-n-chug" question...

    \text{pH}=-\log(6.35\times 10^{-6})=6-\log(6.35)

    What do you get when you plug it into the calculator? You should have the hang of this by now!

    --Chris
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  3. #3
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    H+ = 6,35*10^-6
    ph = -log(6,35*10^-6)
    ph = --5.197226
    ph = 5.197

    Where I used my calculator to calculate log(6,35*10^-6) using the log key.
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