Which of the following could be a buffer?
Which of the following pairs of substances could function as a buffer solution?
a) NaCl + HF
b) HF + NaF
c) HF + H2O
d) NaF
e) NaF + H2O
2 Answers
B) NF and NaF
a buffer is a weak acid and its conjugate base or a weak base and its conjugate acid.
A buffer is a mixture of weak acid and its conjugate base.
a. No. HF is the acid, no F-
b. Yes. HF is the acid and NaF provides the conjugate base
c. No, HF is the acid, no F-
d. No, no weak acid, conjugate base only, no water???
e. No, not enough HF is formed to provide any buffering capacity.
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