Which of the following couples are buffer systems? How do you determine this?

(a) KF/HF (b) KBr/HBr (c) Na2CO3 /NaHCO

1 Answer
Jul 16, 2016

The potassium bromide/hydrogen bromide mix is not a buffer.


A buffer solution is a mixture of a weak acid and its conjugate base that acts to moderate gross changes in #pH#. Hydrogen bromide is not a weak acid, and would give stoichiometric #H_3O^+# in aqueous solution.