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Topic: Acid-base question: finding unknown volume given pH  (Read 7376 times)

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Offline beanbag506

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Acid-base question: finding unknown volume given pH
« on: November 09, 2008, 11:26:27 PM »
Calculate the volume of 0.10 M NaOH to be added to 100 mL of 0.10 M HAc to give a solution with a pH of 5.00.

I know the [H3O+] has to equal 1.0E-5, but I'm not sure how that relates to the volume. I'm guessing I have to use M1V1 = M2V2 somewhere?
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Offline Borek

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Re: Acid-base question: finding unknown volume given pH
« Reply #1 on: November 10, 2008, 03:24:07 AM »
Quote from: beanbag506 on November 09, 2008, 11:26:27 PM
I'm guessing I have to use M1V1 = M2V2 somewhere?

No, this is buffer question, you should use Henderson-Hasselbalch equation.
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