Which combination is the best choice to prepare a buffer with a pH of 9.0? a) NH3;

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Which combination is the best choice to prepare a buffer with a pH of 9.0? a) NH3; NH4Cl (pK, for NH3 is 4.75) b) C5H5N; C5H5NHCl (pK, for C5H-N is 8.76) c) HNO; NaNO (pK for HNO is

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Chemistry A Molecular Approach

ISBN: 9780134874371

5th Edition

Authors: Nivaldo Tro

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Question Posted: Nov 18, 2023 10:02 PM

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Which combination is the best choice to prepare a buffer with a pH of 9.0? a) NH3;

Question:

a) NH3; NH4Cl (pK, for NH3 is 4.75) b) C5H5N; C5H5NHCl (pK, for C5H5N is 8.76) c) HNO₂; NaNO₂ (pKa for HNO₂ is 3.33) d) HCHO₂; NaCHO₂ (pK, for HCHO₂ is 3.74)

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Chemistry A Molecular Approach

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