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Chemistry

A solution is prepared using 15.0 mL of 1.0 M HCl and 20.0 mL of 0.5 M HNO3. The final volume of the solution is 1.25 L. What are the [H3O+] and [OH-] in the final solution? What is the pH of the final solution?
Ok. I got 0.015 mol HCl and 0.1 mol HNO3. Do I just add the moles to get the total? So 0.115 total moles. Which would make a the Molarity of the final solution 0.092M?

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Heather

  1. add the moles, in reality you are adding the H+ concentrations.

    It is the concentration of H+ which determines pH

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    bobpursley

  2. ok thankyou!

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    Heather

  4. for what works the 1.25L that they give you in the problem?

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    lol

  5. never mind, just figure it out

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    lol

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