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Chemistry

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At 40 c,the value of Kw is 2.92
10-14.calculate the [H+] and [OH-] of pure water at 40 c.

  • Chemistry - ,

    This question has been answered before.

    "the value of Kw is 2.92
    10-14" ?? units are missing

    Given that [H+][OH-]=Kw and that

    [H+] = [OH-] for pure water

    then

    [H+][OH-]=[H+][H+]=2.92 x 10^-14

    [H+]^2= 2.92 x 10^-14

    [H+] = sqrt(2.92 x 10^-14)

    but this is missing the units.

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