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Molecular Weight Question |
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| Mar29-05, 08:04 PM | #1 |
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Molecular Weight Question
What is the molecular weight of potassium phosphate buffer pH 6.8 and pH 6.4? I tried to find the answer but no luck. Please help calculate. Thank you.
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| Mar29-05, 10:58 PM | #2 |
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K+ PO3(4-) MW: 212.28 ...... am I missing something here? how does mw change as pH changes?
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| Mar29-05, 11:58 PM | #3 |
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It does not...and while you have the corrrect MW it looks like you may have mistyped the formula for [itex]K_3PO_4 [/itex]
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| Mar30-05, 01:36 AM | #4 |
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Molecular Weight Question
Buffers are mixtures so there is no such thing as molar mass. Molar concentration of buffer refers to the total concentration of both acid and conjugated base.
Best, Borek -- http://www.chembuddy.com Chemical calculators for labs and education BATE - pH calculations, titration curves, hydrolisis |
| Mar30-05, 10:14 AM | #5 |
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