Chapter 16, Problem 16.147CP

The acidity of lemon juice is derived primarily from citric acid ( ${\text{H}}_{\text{3}}\text{Cit}$ ), a triprotic acid. What are the concentrations of ${\text{H}}_{\text{3}}\text{Cit}$ , ${\text{H}}_2{\text{Cit}}^{-}$ , ${\text{HCit}}^{2-}$ , and ${\text{Cit}}^{3-}$ in a sample of lemon juice that has a pH of 2.37 and a total concentration of the four citrate containing species of 0.350 M?

Citric acid