For the circled bullet in regard to this question, please clearly explain with calculations how to identify whether the second proton dissociation is "significant" , second please explain what to look for (numerically) when deciding a dissociation is or is not significant.
What is the pH of a 10 mM solution of phosphoric acid? (For H3PO4, pka1 2.12, pKa2- 7.21, pka3 = 12.32) Again use Ka equation and assume only dissociation of protons wth pKal. ·unce pH is calculated, it can be compared to p02 vale to see if dissociation of second proton is significant and needs to be
