Recall that a buffer can be composed of the following:
• weak base and its conjugate acid
• weak acid and its conjugate base
• weak acid and a strong base
▪ concentration of weak acid > concentration of strong base
• weak base and a strong acid
▪ concentration of weak base > concentration of strong acid
Which of the following mixtures may be act as a buffer solution?
A) HBr, NaBr
B) HF, NaF
C) HCl, NaCl
D) HI, NaI
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