18. Aqueous Equilibrium
Intro to Buffers
4PRACTICE PROBLEM
The following diagram represents four different solutions that may contain any of these four species in varying concentrations: H2A, KHA, and K2A.
![](https://lightcat-files.s3.amazonaws.com/problem_images/266427f4dcf565b6-1673020533427.jpg)
K+ ions are not shown for clarity. Identify which of these solutions is a buffer.
The following diagram represents four different solutions that may contain any of these four species in varying concentrations: H2A, KHA, and K2A.
K+ ions are not shown for clarity. Identify which of these solutions is a buffer.