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March 30, 2017

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Calculate the concentration of aqueous solution of barium hydroxide whose pH is 12

  • Chemistry - ,

    Ba(OH)2 ==> Ba^2+ + 2OH^-

    Convert pH to OH^-, take half of it and that is the M concn of Ba(OH)2.

  • Chemistry - ,

    Dr Bob thanks but am not clear on the half.am i supposed 2to half of the pOH or the concentration?

  • Chemistry - ,

    Don't take 1/2 pH. Convert pH to OH^-, take 1/2 the OH. Look at the equation I wrote--1 Ba(OH)2 = 2 OH so taking 1/2 the OH will give you the Ba(OH)2 and concn Ba(OH)2 is what you want.

  • Chemistry - ,

    Thanks i get it now

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