Which of the following aqueous solutions will or will not act as a buffer solution?
NaH2PO4 and Na2HPO4
OK, so a buffer soln requires a few things:
1. You need a weak acid, (or base)
2. You need to have the conjugate base of that acide present from a salt
..all violate requirement 1 so they can't act as buffers.
The others would act as buffers to varying degrees.
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