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Topic: Acid Base Equilibria  (Read 3867 times)

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Offline sector9tahiti

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Acid Base Equilibria
« on: October 11, 2008, 11:01:46 AM »
Calculate the hydrogen ion concentration and the pH of the solution formed when .020M of nitric acid is added to one liter of aqueous .20M ammonia solution. Assume no significant volume change upon addition of the acid.

Offline Borek

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Re: Acid Base Equilibria
« Reply #1 on: October 11, 2008, 02:16:43 PM »
Done. What now?

Please read forum rules.
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Offline sector9tahiti

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Re: Acid Base Equilibria
« Reply #2 on: October 12, 2008, 02:47:52 PM »
how do you find the hydrogen ion concentration and pH? Thats all i need.

Offline Borek

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Re: Acid Base Equilibria
« Reply #3 on: October 12, 2008, 04:46:36 PM »
THis is buffer question and you need to use Henderson-Hasselbalch equation.
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Offline sector9tahiti

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Re: Acid Base Equilibria
« Reply #4 on: October 12, 2008, 08:24:10 PM »
so if i use that equation am i suppose to get pH= 10.26 and [H+] = 5.5x10-11

Offline Borek

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Re: Acid Base Equilibria
« Reply #5 on: October 13, 2008, 02:46:34 AM »
pH= 10.26

Close. What pKa (or pKb) value do you use?
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