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Which may be used to prepare a buffer having a pH of 8.8? Ka=7*10^3 for H3PO4;...

Which may be used to prepare a buffer having a pH of 8.8?
Ka=7*10^3 for H3PO4; 8*10^-8 for H2PO4-: 5*10^-13 for HPO42-
NaHPO4 and H3PO4
H3PO4 and Na3PO4
NaH2PO4 only
Na3PO4 and NaHPO4
NaH2PO4 Nd Na2HPO4
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Answer #1

Huswer o As ka,= 4x103 for H₂PO4 hence it is not a weak anid. 1. # NaHPO and H₂PO4 will not be used to prepare a Buffer. solu

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