10.0 mL of a solution of Fe³⁺ was placed in a 100 mL volumetric flask. 5mL of nitric acid and 5 mL of KSCN solution were added. Water was added to make the solution up to the mark on the neck of the volumetric flask, and the solution was thoroughly mixed. The concentration of the solution in the volumetric flask was determined to be 0.00209 mol/L by spectrophotometry. What was the concentration of the original Fe³⁺ solution?