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pH Buffer solution |
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| Jan26-10, 02:45 PM | #1 |
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pH Buffer solution
I have no idea how to find the pH of a buffer solution:
Please step by step! Calculate the pH after 0.020 mol NaOH is added to 1.00 L of: a mixture containing 0.100 M HONH2 and 0.100 M HONH3Cl please step by step instruction so I can follow and do other problems on my own! Thanks |
| Jan26-10, 02:50 PM | #2 |
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its been a while but dont you just find the moles of each. then find out how many OH or H you have and find the ph like that? or was that not buffer?
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| Jan26-10, 03:29 PM | #3 |
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i don't believe that's how you do it
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| Jan26-10, 04:06 PM | #4 |
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Admin
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pH Buffer solution
One of the substances listed reacts with NaOH. Assume reaction is quantitative, then it is just Henderson-Hasselbalch equation.
-- buffer calculator, concentration calculator pH calculator, stoichiometry calculator |
| Jan26-10, 04:33 PM | #5 |
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would the answer be 6.18?
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| Jan26-10, 05:00 PM | #6 |
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ahhh the henderson hasslebach i remember that one. Yeah you just have to use that equation with the mols of acid and base taht you have.
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| Jan26-10, 05:06 PM | #7 |
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Admin
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Depends on what value you have used for pKa. Correct ball park for sure.
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