A 50.00 mL sample of the solution (1L of 0.01000M solution requires 2.14g of potassium iodate), mixed with 2 g of potassium iodide and 10.00 mL of (H_{2}SO_{4}), is fully titrated with 38.50 mL of sodium thiosulfate. What is the concentration of the sodium thiosulfate solution?