A mixed aqueous solution of HCl and phosphorous acid (H3PO3; Ka1 = 3.00×10-2; Ka2 = 1.66×10-7) is titrated with 0.1000-M NaOH. The first end point (cresol purple indicator) is reached after 31.96 mL of NaOH has been added. The second end point (thymol blue indicator) is reached after a total of 50.22 mL of NaOH has been added. What quantity of HCl (units of mol or mmol) was present in the initial mixture? What quantity of phosphorous acid (units of mol or mmol) was present in the initial mixture?