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5 Shrooms "Chemistry Q"
    #9249035 -

To the person who knows the correct answer to this.

Calculate the pH of a solution prepared by dissolving 0.15 mol of
            benzoic acid (HBz) and 0.30 mol of sodium benzoate in water
            sufficient to yield 1.00 L of solution. The Ka of benzoic acid is
            6.5x10-5.

The Ka of benzoic acid is 6.5 x 10-5.

a.10.11
b.4.49
c.4.19
d.2.51
e.3.89


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Edited by TrancedShroom (11/15/08 12:50 PM)

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Re: 5 Shrooms [Re: TrancedShroom]
    #9249076 -

I think I just got a headache.

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Re: 5 Shrooms [Re: MisterMuscaria]
    #9249086 -

I know what you mean.


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Re: 5 Shrooms [Re: TrancedShroom]
    #9249091 -

Its been a while, but i'm guessing b or c. Isn't there some kind of formula?

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Re: 5 Shrooms [Re: Green_T]
    #9249100 -

D.


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:hanky:

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Re: 5 Shrooms [Re: Prof. Astro]
    #9249102 -

Amberica said:
D.




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                                                                  thats right cubes in december bitches

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Re: 5 Shrooms [Re: CubensisCutter]
    #9249108 -

well nobody's said A yet...


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"Fear makes the wolf look bigger"

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Re: 5 Shrooms [Re: jenns_hot]
    #9249113 -

Do you have a take home chemistry exam or something?

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Re: 5 Shrooms [Re: TrancedShroom]
    #9249130 -

Use the Henderson-Hasselbalch equation. You can plug in numbers as well as I can.

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Re: 5 Shrooms [Re: Entropymancer]
    #9249196 -

Thats what that equation was, damnit. I took the ochem course 3 years ago, got A's, but now i've forgotten everything. I have a piece of paper (degree) saying i know this shit...but i dont. I ONCE knew it :frown:

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