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Find pH of solution

  1. Aug 6, 2008 #1
    1. The problem statement, all variables and given/known data

    What is the pH of a solution prepared by mixing 50.0 mL of 0.300 M HCL with 450.0 mL of 0.400 M HIO3? HIO3 Ka = 1.6 x 10^-1

    2. Relevant equations

    ICE

    3. The attempt at a solution

    I first converted each concentration to its new molarity by figuring out the number of moles of each then dividing by the new volume of 0.5 L. I used the ICE method to determine the H+ concentration. I got a pH of 0.714.
     
  2. jcsd
  3. Aug 7, 2008 #2

    Borek

    User Avatar

    Staff: Mentor

    0.714 looks OK :smile:

    Although it should be more like 0.71, you are given only 2 significant digits of Ka.


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