CREATE TABLE table_13628 ("[A]  ( mol/L ) " TEXT, "[H 3 PO 4 ]/[A]  ( % ) " TEXT, "[H 2 PO 4 \\u2212 ]/[A]  ( % ) " FLOAT, "[HPO 4 2\\u2212 ]/[A]  ( % ) " TEXT, "[PO 4 3\\u2212 ]/[A]  ( % ) " TEXT)

What the [A] that has more than 8.29 as the H2PO 4 and 1.30 10 8 as the PO4 3?
SELECT "[A] (mol/L)" FROM table_13628 WHERE "[H 2 PO 4 \u2212 ]/[A] (%)" > '8.29' AND "[PO 4 3\u2212 ]/[A] (%)" = '1.30×10 −8'
SELECT "[A] (mol/L)" FROM "table_13628" WHERE "[H 2 PO 4 \u2212 ]/[A] (%)" > '8.29' AND "[PO 4 3\u2212 ]/[A] (%)" = '1.30×10 −8'