Which of the following solutions is a good buffer system?
A) A solution that is 0.10 M NaCl and 0.10 M HCl
B) A solution that is 0.10 M HCN and 0.10 M LiCN
C) A solution that is 0.10 M NaOH and 0.10 M HNO 3
D) A solution that is 0.10 M HNO3 and 0.10 M NaNO 3
E) A solution that is 0.10 M HCN and 0.10 M KI
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