3
answers
0
watching
2,198
views
4 Nov 2017
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
Read by 1 person
11 Feb 2023
Already have an account? Log in
Joey Tang
Bachelor’s Degree in Chemistry from McMaster University5 May 2020
Answer verification
This is a step by step verification of the answer by our certified expert.
Subscribe to our livestream channel for more helpful videos.