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Q6. Which combination is the best choice to prepare a buffer with a pH of 9.0? a) NH3; NH4Cl (pKb for NH3 is 4.75) b) C5H3N; C3H5NHCl (pKb for CsH3N is 8.76) c) HNO2; NaNO2 (pK, for HNO2 is 3.33) d) HCHO2; NaCHO2 (pK, for HCHO, is 3.74)
Q6. Which combination is the best choice to prepare a buffer with a pH of 9.0? a) NH3; NH4Cl (pKb for NH3 is 4.75) b) C5H3N; C3H5NHCl (pKb for CsH3N is 8.76) c) HNO2; NaNO2 (pK, for HNO2 is 3.33) d) HCHO2; NaCHO2 (pK, for HCHO, is 3.74)
16 Jun 2023
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11 Feb 2023
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Joey Tang
Bachelorβs Degree in Chemistry from McMaster University5 May 2020
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