Skip to main content
. 2004 Apr 30;8(4):253–258. doi: 10.1186/cc2861

Figure 2.

Figure 2

The isohydric principal expressed in (a) the law of mass action form and (b) the Henderson–Hasselbalch form. Because all weak acids in a solution are in equilibrium with a single pool of hydrogen ions, the ratio of any of the conjugate anion and its undissociated acid will be able to describe the pH.