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vera_ewing

  • one year ago

What is the pH of a solution with [OH-] = 2.6 × 10^-3 M? A. 5.95 B. 2.59 C. 8.05 D. 11.41

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  1. anonymous
    • one year ago
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    pOH = - log [OH-] pH = 14 - pOH did you get pOH?

  2. vera_ewing
    • one year ago
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    @JFraser It's C right?

  3. JFraser
    • one year ago
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    it's not C

  4. vera_ewing
    • one year ago
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    I mean A, not C. It's A right?

  5. JFraser
    • one year ago
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    nope

  6. vera_ewing
    • one year ago
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    Are you sure?

  7. JFraser
    • one year ago
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    do what @peachpi is saying i'm very sure

  8. JFraser
    • one year ago
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    find the pOH using the [OH-] concentration

  9. vera_ewing
    • one year ago
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    Hmm. I didn't get any of the answer choices. I got 16.35 when I did that :/

  10. vera_ewing
    • one year ago
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    Closest answer to that is D...so is D the answer?

  11. JFraser
    • one year ago
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    you're not even doing the right math, because it's a 2 step process

  12. JFraser
    • one year ago
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    find the -log(0.0026)

  13. JFraser
    • one year ago
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    that's the pOH

  14. vera_ewing
    • one year ago
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    Okay thank you.

  15. JFraser
    • one year ago
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    what do you get?

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spraguer (Moderator)
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