A solution containing which one of the following pairs of substances will be a buffer solution?
A)NaI, HI
B)KBr, HBr
C)RbCl, HCl
D)CsF, HF
E)none of the above

Question

Quizplus · Accepted Answer

A buffer solution contains a weak acid and its conjugate base or a weak base and its conjugate acid. In this case, CsF is a weak base and HF is a weak acid, therefore the solution containing CsF and HF will be a buffer solution. The other options do not contain a weak acid and its conjugate base or a weak base and its conjugate acid, so they would not form buffer solutions.

A Solution Containing Which One of the Following Pairs of Substances