A 20.00mL sample of H3Y was titrated with 0.1000 M NaOH. The first equivalence point was reached after the addition of 14.98mL of base. The second equivalence point was reached after the addition of 30.03mL. Find two values for molarity of H3Y in the original sample which came to be 0.0249 M and 0.050 M. Find the initial pH of the solution of H3Y?