To determine the concentration dependence of the rate of the reaction

you might measure [OH⁻] as a function of time using a pH meter. (To do so, you would set up conditions under which [H₂PO₃⁻] remains constant by using a large excess of this reactant.) How would you prove a second-order rate dependence for [OH⁻]?

Transcribed Image Text:

H₂PO₂ (aq) + OH¯(aq) → HPO3² (aq) + H₂O(l)