Answer:
HF, NaF
Step-by-step explanation:
A buffer system may be formed in one of the following ways:
- A weak acid and its conjugate base.
- A weak base and its conjugate acid.
Which of the following mixtures may act as a buffer solution?
- HF, NaF. YES. HF is a weak acid and F⁻ (from NaF) is its conjugate base.
- HBr, NaBr. NO. HBr is a strong acid.
- HCl, NaCl. NO. HCl is a strong acid.
- HI, NaI. NO. HI is a strong acid.