The pH of a 8.1102M solution of phosphoric acid (H3PO4) is measured to be 1.66. Use this information to determine a value of Ka for phosphoric acid. H3PO4(aq)+H2O(l)H2PO4(aq)+H3O+(aq)Ka= In the laboratory, a general chemistry student measured the pH of a 0.425M aqueous solution of triethylamine, (C2H5)3N to be 12.185. Use the information she obtained to determine the Kb for this base. Kb(experiment)=