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Old Feb 10th 2018, 10:25 AM   #1
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Difficult buffer question...

Question -

You will prepare 2 buffer solutions, one which is pH 5.2 and one which is pH 8.8. Solutions available: 1M NH3, 1M NH4Cl, 1M ethanoic acid, 1M sodium ethanoate solution. Calculate how much of the above solutions you need to make 100cm3 of each buffer.

Use the equation pH = pKa - log [HA]/[A-]

Any help appreciated!
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