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Topic: pH of a solution?  (Read 3558 times)

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Offline Whapper2006

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pH of a solution?
« on: February 22, 2009, 07:45:44 PM »
What is the pH of a solution that is prepared by dissolving 6.60 grams of formic acid (formula weight = 46.03 grams/mol) and 9.61 grams of sodium formate (formula weight = 68.01 grams/mole) in water and diluting to 600.00 mL? The Ka for formic acid is 0.000177.

I'm not sure what to do with dissolving 6.60 grams of formic acid and 9m61 grams of sodium formate and diluting it into 600.00mL.  How do I get the concentration so i can set it up with the Ka value and get the pH?
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Offline Astrokel

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Re: pH of a solution?
« Reply #1 on: February 22, 2009, 08:42:14 PM »
That is telling you the volume of solution is 600.00mL
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Offline Whapper2006

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Re: pH of a solution?
« Reply #2 on: February 22, 2009, 10:03:42 PM »
ok great i got it, the answer came out to be 3.746
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