Multiple Choice
Which of the following solutions will be the best buffer at a pH of 9.26? (Ka for HC2H3O2 is 1.8 10-5; Kb for NH3 is 1.8 10-5.)
A) 0.20 M NH3 and 0.20 M NH4Cl
B) 3.0 M HC2H3O2 and 3.0 M NH4Cl
C) 0.20 M HC2H3O2 and 0.20 M NaC2H3O2
D) 3.0 M NH3 and 3.0 M NH4Cl
E) 3.0 M HC2H3O2 and 3.0 M NH3
Correct Answer:
Verified
Correct Answer:
Verified
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