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March 26, 2017

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Find the concentration of H3O if the pOH of a solution is 11.700:

So far I have: pH= 14.000- pOH which is 14.000-11.700=2.300

pH = -log[H3)]
-2.300 = log[H3O]

Lost after that!!!

Help please.

  • Chemistry - ,

    You're almost there.
    log(H3O^+) = -2.3
    Set -2.3 up on your calculator. Press the 10x key. And the answer comes out. You should get 0.00501 or 5 x 10-3 depending upon how you have your calculator set up to display the answer.

  • Chemistry - ,

    Thanks a lot. I just couldn't get there.

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