Which of the following acid-conjugate base pairs can serve as a buffer system?
a) HNO3 and NaNO3
B)HCI and NaCl
c) HF and NaF
can you please explain. Thank you
a) HNO3 and NaNO3
B)HCI and NaCl
c) HF and NaF
can you please explain. Thank you
IndyAssassin92
Favorite Answer
A buffer system must be comprised of a weak conjugate acid-base pair. This means that you can have a weak acid and its conjugate base or a weak base and its conjugate acid. A and B are both strong acids, which means they dissociate 100%. HF is a weak acid meaning only partial dissociation. From the definition I just gave, this means that C would be the correct choice.
skipper
HF and NaF
Only HF is a weak acid; HNO3 and HCl are 100% dissociated