Chemistry

Can somebody explain how to do this? I am stuck. I've tried solving for H+ concentration. I got .00024M and subtracted it from [OH-]. Then I solved for pOH and used that to get pH but still got the wrong answer. Somone plz explain this to me.

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asked by John
  1. You told us all of your trouble but didn't post the problem.

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    posted by DrBob222

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